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Background: Rectal tumors are uncommon in dogs and cats. The clinical signs result from intra- and extraluminal compression. Diagnosis and treatment of rectal tumors are challenging due to their intraplevic location. Owing to considerable bonesuperposition, computed tomography is the best exam to evaluate the tumor and plan surgery; however, poor availabilityand high costs may hinder its use. The objective of this case report is to describe the successful use of a combination ofdiagnostic techniques, namely transrectal ultrasound, transrectal fine-needle aspiration, and colonoscopy, for diagnosisand surgery planning in a case of intrapelvic intestinal leiomyoma in a dog.Case: A 13-year-old female mongrel dog with tenesmus, low stool production, and hematochezia for two months was presented for examination. During this two-month period, a symptomatic treatment was administered, but there was no clinicalimprovement. In the clinical evaluation revealed a painless mass on the left dorsolateral region, at a depth of around 4 cm,with considerable luminal reduction. Abdominal ultrasound revealed a mass close to the descending colon; however, bonesuperposition precluded identification of its origin or delimitation of its boundaries. The patient was subjected to transrectalultrasound imaging, colonoscopy, and cytological examination of fine-needle aspiration biopsy material collected under generalanesthesia. The mass was located at the final portion of the descending colon; it was extraluminal, and measured around 7 x7 cm. The integrity of the intestinal wall was preserved. Next, radiographic examination of the thorax using three projections(ventrodorsal, left lateral, and right lateral) was performed to check for metastases, and no alteration was detected. Cytologysuggested presence of leiomyoma. The patient underwent exploratory laparotomy with pubic osteotomy for intrapelvic access...(AU)

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Background: Rectal tumors are uncommon in dogs and cats. The clinical signs result from intra- and extraluminal compression. Diagnosis and treatment of rectal tumors are challenging due to their intraplevic location. Owing to considerable bonesuperposition, computed tomography is the best exam to evaluate the tumor and plan surgery; however, poor availabilityand high costs may hinder its use. The objective of this case report is to describe the successful use of a combination ofdiagnostic techniques, namely transrectal ultrasound, transrectal fine-needle aspiration, and colonoscopy, for diagnosisand surgery planning in a case of intrapelvic intestinal leiomyoma in a dog.Case: A 13-year-old female mongrel dog with tenesmus, low stool production, and hematochezia for two months was presented for examination. During this two-month period, a symptomatic treatment was administered, but there was no clinicalimprovement. In the clinical evaluation revealed a painless mass on the left dorsolateral region, at a depth of around 4 cm,with considerable luminal reduction. Abdominal ultrasound revealed a mass close to the descending colon; however, bonesuperposition precluded identification of its origin or delimitation of its boundaries. The patient was subjected to transrectalultrasound imaging, colonoscopy, and cytological examination of fine-needle aspiration biopsy material collected under generalanesthesia. The mass was located at the final portion of the descending colon; it was extraluminal, and measured around 7 x7 cm. The integrity of the intestinal wall was preserved. Next, radiographic examination of the thorax using three projections(ventrodorsal, left lateral, and right lateral) was performed to check for metastases, and no alteration was detected. Cytologysuggested presence of leiomyoma. The patient underwent exploratory laparotomy with pubic osteotomy for intrapelvic access...

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Background: Gastric neoplasia is rare, corresponding to less than 1% of cases, with a lower prevalence of those involving smooth muscle tissues. In these cases, clinical signs worsen in the occurrence of pyloric obstruction, leading to clinical manifestations such as chronic emesis. The exeresis of the neoplasm is promoted as a therapeutic measure to reestablish gastrointestinal flow. There partial gastrectomy followed by gastroduodenal anastomosis, using the Billroth I technique, is among the available surgical techniques. The therapeutic success of the Billroth I technique after pylorectomy was reported in a dog with gastric leiomyoma. Case: A 9-year-old male Poodle dog, weighing 9.5 kg, was referred for clinical evaluation with a history of chronic vomiting starting three months ago, progressive weight loss, and melena, previously treated by another Veterinarian as idiopathic gastroenteritis. The physical evaluation of the animal showed a state of normal consciousness, body score 4/9, pale ocular and oral mucous membranes, respiratory rate 20 mpm, heart rate 166 bpm, a rectal temperature of 37.9°C, and dehydration degree of 8.0%. Blood count showed normocytic normochromic anemia and leukocytosis with shift to the right. Radiographic and endoscopic examinations were not noteworthy. Endoscopic biopsy after a histopathological evaluation showed no cellular or tissue atypia. On the other hand, abdominal ultrasound assessment revealed thickening with loss of echotexture and definition of the muscular layer of the gastric wall, pyloric and duodenum region compatible with benign antral muscle hypertrophy and/or pyloric neoplasia. The animal worsened 5 days after the initial treatment, with progressive episodes of emesis and melena, opting for an exploratory laparotomy. A mass of firm consistency measuring approximately 2.5 × 6.0 cm in diameter was found in the pyloric region, opting for a pylorectomy. The excised fragment was sent for histopathological...(AU)

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Extraintestinal pathogenic Escherichia coli (ExPEC) is a highly diverse pathotype of E. coli which colonizes the intestine, and it is considered an important etiological agent associated with bacteremia and other systemic infections, among them urinary tract infection. Retrospective studies evaluating morbidity and mortality of nondomestic felids have demonstrated that urinary tract diseases are among the main causes of death for geriatric animals. Also, mesenchymal neoplasms of the uterus are common in wild felids, and they possess variable morphologic characteristics related to invasiveness and malignancy. This report describes a case of bilateral pyelonephritis due to extraintestinal uropathogenic E. coli infection in a captive jaguar (Panthera onca). The diagnosis was confirmed through pathological, bacterial and immunohistochemical findings. According to molecular analysis, this E. coli strain was classified in the phylogroup F, possessing the following virulence-associated genes: usp, cnf-1, hlyA, papC and sfa. Additionally, this E. coli was highly resistant to beta-lactams and first-generation cephalosporin. This jaguar also presented a uterine leiomyoma with distinct distribution, and severe degenerative articular disease, both of them described as frequently seen lesions in geriatric animals from the Panthera genus.(AU)

Escherichia coli extraintestinal patogênica (ExPEC) é um patotipo altamente diverso de E. coli que coloniza o intestino e é considerada um agente etiológico importante, associado com bacteremia e outras infecções sistêmicas, dentre elas infecções do trato urinário. Estudos retrospectivos avaliando morbidade e mortalidade de felídeos não domésticos demostram que doenças do trato urinário estão entre as principais causas de morte de animais geriátricos. Ainda, neoplasias mesenquimais uterinas são comuns em felídeos de cativeiro e possuem características morfológicas variáveis relacionadas a invasividade e malignidade. Neste relato é descrito um caso de pielonefrite bilateral por E. coli extraintestinal uropatogênica em uma onça-pintada de cativeiro (Panthera onca). O diagnóstico foi confirmado através dos achados patológicos, bacteriológicos e imuno-histoquímicos. A partir da análise molecular, esta cepa de E. coli foi classificada no filogrupo F, possuindo os seguintes genes associados a virulência: usp, cnf-1, hlyA, papC and sfa. Adicionalmente, a bactéria isolada foi altamente resistente a ß-lactâmicos e cefalosporinas de primeira geração. Foi observado ainda um leiomioma uterino com distribuição distinta e doença articular degenerativa severa, ambas descritas na literatura como comumente observadas em animais geriátricos do gênero Panthera.(AU)

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Background: Gastric neoplasia is rare, corresponding to less than 1% of cases, with a lower prevalence of those involving smooth muscle tissues. In these cases, clinical signs worsen in the occurrence of pyloric obstruction, leading to clinical manifestations such as chronic emesis. The exeresis of the neoplasm is promoted as a therapeutic measure to reestablish gastrointestinal flow. There partial gastrectomy followed by gastroduodenal anastomosis, using the Billroth I technique, is among the available surgical techniques. The therapeutic success of the Billroth I technique after pylorectomy was reported in a dog with gastric leiomyoma. Case: A 9-year-old male Poodle dog, weighing 9.5 kg, was referred for clinical evaluation with a history of chronic vomiting starting three months ago, progressive weight loss, and melena, previously treated by another Veterinarian as idiopathic gastroenteritis. The physical evaluation of the animal showed a state of normal consciousness, body score 4/9, pale ocular and oral mucous membranes, respiratory rate 20 mpm, heart rate 166 bpm, a rectal temperature of 37.9°C, and dehydration degree of 8.0%. Blood count showed normocytic normochromic anemia and leukocytosis with shift to the right. Radiographic and endoscopic examinations were not noteworthy. Endoscopic biopsy after a histopathological evaluation showed no cellular or tissue atypia. On the other hand, abdominal ultrasound assessment revealed thickening with loss of echotexture and definition of the muscular layer of the gastric wall, pyloric and duodenum region compatible with benign antral muscle hypertrophy and/or pyloric neoplasia. The animal worsened 5 days after the initial treatment, with progressive episodes of emesis and melena, opting for an exploratory laparotomy. A mass of firm consistency measuring approximately 2.5 × 6.0 cm in diameter was found in the pyloric region, opting for a pylorectomy. The excised fragment was sent for histopathological...

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Descrição de leiomioma vulvar em lobo-guará (Chrysocyon brachyurus), fêmea, castrada, apresentando 10 anos de idade e mantida em cativeiro. Com base na avaliação clínica, no monitoramento de formação nodular de crescimento lento e progressivo e no diagnóstico preliminar sugestivo de neoplasia, procedeu-se à exérese da massa tumoral e à identificação anatomopatológica do leiomioma. Exames complementares radiográficos e ultrassonográficos não apontaram presença de metástases. A ressecção cirúrgica se mostrou satisfatória como conduta clínica, não havendo recidiva.(AU)

Description of leiomyoma vulvar in a female castrated Chrysocyon brachyurus, , ten years of age, and maintained in captivity. Based on the clinical evaluation, monitoring of nodular formation of slow and progressive growth, and preliminary diagnosis suggestive of neoplasia, the tumor mass was excised and anatomopathological identification of the leiomyoma was done. Complementary radiographic and ultrasound examinations did not indicate the presence of metastases. Surgical resection proved to be satisfactory as a clinical practice, and there was no relapse.(AU)

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Descrição de leiomioma vulvar em lobo-guará (Chrysocyon brachyurus), fêmea, castrada, apresentando 10 anos de idade e mantida em cativeiro. Com base na avaliação clínica, no monitoramento de formação nodular de crescimento lento e progressivo e no diagnóstico preliminar sugestivo de neoplasia, procedeu-se à exérese da massa tumoral e à identificação anatomopatológica do leiomioma. Exames complementares radiográficos e ultrassonográficos não apontaram presença de metástases. A ressecção cirúrgica se mostrou satisfatória como conduta clínica, não havendo recidiva.(AU)

Description of leiomyoma vulvar in a female castrated Chrysocyon brachyurus, , ten years of age, and maintained in captivity. Based on the clinical evaluation, monitoring of nodular formation of slow and progressive growth, and preliminary diagnosis suggestive of neoplasia, the tumor mass was excised and anatomopathological identification of the leiomyoma was done. Complementary radiographic and ultrasound examinations did not indicate the presence of metastases. Surgical resection proved to be satisfactory as a clinical practice, and there was no relapse.(AU)

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Background: In dogs, neoplasms of the urinary bladder are uncommon; among urinary bladder tumors, transitional cell carcinoma is the most frequent type. Urinary bladder leiomyomas are rare mesenchymal tumors whose etiology is associated with urinary retention and exposure to carcinogens. Diagnosis of this neoplasm can be determined by histopathological analysis, and treatment is surgical. The aim of this report is to describe a case of leiomyoma in the urinary bladder of a dog.Case: A 10-year-old male mongrel dog was examined at the Veterinary Hospital of Federal University of Paraíba, where a mass in the urinary bladder was identified, and was estimated to have been developing over the course of a month. Hematuria, congested ocular mucosa, and engorged episcleral vessels were observed during the physical examination. Ultrasonographic examination confirmed distension of the urinary bladder, which exhibited anechoic content and echogenic sediment. A neoplasm measuring 8 x 3.39 cm was detected in the bladder wall. This neoplasm had mixed echogenicity, heterogeneous echotexture, and well-defined borders. Color Doppler ultrasonography allowed observation of vascularization inside the mass. The animal was subjected to cystotomy to excise the mass, which was slightly adhered to the inner wall of the bladder. After this procedure, the excised specimen was submitted for histopathological analysis. Macroscopic examination revealed that the mass was firm, lobulated, nodular, and resistant to cutting. The sample was fixed in 10% formalin; the fragments were processed and stained with hematoxylin and eosin (HE) or Masson’s trichrome (MT) for analysis by optical microscopy. The histopathological examination revealed that the mass was encapsulated, had well-delimited borders composed by bundles of elongated cells with no atypical characteristics. These cells exhibited a slightly eosinophilic cytoplasm that contained moderate to abundant fusiform nuclei.[...]

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Background: In dogs, neoplasms of the urinary bladder are uncommon; among urinary bladder tumors, transitional cell carcinoma is the most frequent type. Urinary bladder leiomyomas are rare mesenchymal tumors whose etiology is associated with urinary retention and exposure to carcinogens. Diagnosis of this neoplasm can be determined by histopathological analysis, and treatment is surgical. The aim of this report is to describe a case of leiomyoma in the urinary bladder of a dog.Case: A 10-year-old male mongrel dog was examined at the Veterinary Hospital of Federal University of Paraíba, where a mass in the urinary bladder was identified, and was estimated to have been developing over the course of a month. Hematuria, congested ocular mucosa, and engorged episcleral vessels were observed during the physical examination. Ultrasonographic examination confirmed distension of the urinary bladder, which exhibited anechoic content and echogenic sediment. A neoplasm measuring 8 x 3.39 cm was detected in the bladder wall. This neoplasm had mixed echogenicity, heterogeneous echotexture, and well-defined borders. Color Doppler ultrasonography allowed observation of vascularization inside the mass. The animal was subjected to cystotomy to excise the mass, which was slightly adhered to the inner wall of the bladder. After this procedure, the excised specimen was submitted for histopathological analysis. Macroscopic examination revealed that the mass was firm, lobulated, nodular, and resistant to cutting. The sample was fixed in 10% formalin; the fragments were processed and stained with hematoxylin and eosin (HE) or Massons trichrome (MT) for analysis by optical microscopy. The histopathological examination revealed that the mass was encapsulated, had well-delimited borders composed by bundles of elongated cells with no atypical characteristics. These cells exhibited a slightly eosinophilic cytoplasm that contained moderate to abundant fusiform nuclei.[...](AU)

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Background: Neoplasia of the urinary bladder is common in dogs, accounting approximately 0.5 to 1.0 percent of all neoplasms. Most of the neoplasia of the urinary bladder is epithelial in origin and only 10% of urinary bladder neoplasms in dogs are from mesenchymal origin, of which the most frequent types are leiomyoma / leiomyosarcoma, and hemangioma / hemangiosarcoma. Virtual autopsy refers to the postmortem use of radiology, ultrasound and cross-sectional imaging prior to conventional necropsy. This paper reports the detection of a rare extra-luminal urinary bladder mass diagnosed as leiomyoma with a virtual autopsy techniques.Case: A 16-year-old male Schnauzer had previous history of seizure and no complains related to the urinary system. The animal was treated symptomatically to the neurological signs and responded to medical treatment. Nine weeks later from the first visit to the hospital the dog was found dead at home. Then postmortem ultrasound and computed tomography of the abdomen were performed. Postmortem ultrasound revealed a homogenously hypoechoic, rounded and slightly irregularly marginated mass located externally but adjacent to the left cranial wall of the urinary bladder and appears to extend from its serosal margins. Postmortem computed tomography was performed after postmortem ultrasound. A pedunculated homogenous soft tissue attenuating mass was located at the left lateral aspect of the urinary bladder and extended cranially. It had a stalk that connected to the left lateral wall of the urinary bladder. A partial necropsy of the abdomen was done just to examine the mass. A round extraluminal, pedunculated mass was observed at the left lateral aspect of the urinary bladder wall. It was pale pink on the outside and white inside, with a soft to firm consistency. The lumen and mucosal surface of the urinary bladder was smooth and regular...(AU)

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Background: Neoplasia of the urinary bladder is common in dogs, accounting approximately 0.5 to 1.0 percent of all neoplasms. Most of the neoplasia of the urinary bladder is epithelial in origin and only 10% of urinary bladder neoplasms in dogs are from mesenchymal origin, of which the most frequent types are leiomyoma / leiomyosarcoma, and hemangioma / hemangiosarcoma. Virtual autopsy refers to the postmortem use of radiology, ultrasound and cross-sectional imaging prior to conventional necropsy. This paper reports the detection of a rare extra-luminal urinary bladder mass diagnosed as leiomyoma with a virtual autopsy techniques.Case: A 16-year-old male Schnauzer had previous history of seizure and no complains related to the urinary system. The animal was treated symptomatically to the neurological signs and responded to medical treatment. Nine weeks later from the first visit to the hospital the dog was found dead at home. Then postmortem ultrasound and computed tomography of the abdomen were performed. Postmortem ultrasound revealed a homogenously hypoechoic, rounded and slightly irregularly marginated mass located externally but adjacent to the left cranial wall of the urinary bladder and appears to extend from its serosal margins. Postmortem computed tomography was performed after postmortem ultrasound. A pedunculated homogenous soft tissue attenuating mass was located at the left lateral aspect of the urinary bladder and extended cranially. It had a stalk that connected to the left lateral wall of the urinary bladder. A partial necropsy of the abdomen was done just to examine the mass. A round extraluminal, pedunculated mass was observed at the left lateral aspect of the urinary bladder wall. It was pale pink on the outside and white inside, with a soft to firm consistency. The lumen and mucosal surface of the urinary bladder was smooth and regular...

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O presente trabalho reporta as características clínicas e cirúrgicas de oito casos de cadelas portadoras de leiomioma vaginal, com histórico de aumento de volume na região perineal, aparecimento de massa pela vulva, disquezia, tenesmo e disúria. As pacientes foram submetidas à cirurgia de episiotomia para ressecção da massa neoplásica, e em quatro casos foi necessária a ovariossalpingo-histerectomia. Porém, uma delas apresentou recidiva, e, no segundo procedimento cirúrgico de exérese de neoformação, o histopatológico diagnosticou leiomiossarcoma. A paciente ainda apresentou mais duas recidivas, até o proprietário optar pela eutanásia. Decorridos quatro meses, as sete cadelas diagnosticadas com leiomioma não apresentaram recidiva, e os proprietários relataram ausência de sinais relacionados com a doença descrita. Conclui-se que a episiotomia para ressecção da massa vaginal e a ovariossalpingo-histerectomia nas cadelas inteiras nos casos de tumores vaginais benignos são tratamentos satisfatórios, com bom prognóstico, ao contrário do leiomiossarcoma.

This study reports the clinical and surgical procedures of eight cases of bitches with vaginal leiomyoma. All animals presented increased volume in the perineal region, and exteriorization of the vulva, dyschezia, tenesmus and dysuria. The patients underwent episiotomy surgery for resection of the neoplastic mass, and ovariosalpingohisterectomy in four cases. However, one had recurrence on the second surgical procedure for removal of neoformation, histopathological diagnosed leiomyosarcoma, the patient also had two more relapses, until the owner chose euthanasia. After four months, the seven dogs diagnosed with leiomyoma showed no recurrence and the owners reported no signs of the disease described. We concluded that episiotomy for vaginal mass resection combined with ovariohysterectomy in cases of benign vaginal tumors have shown satisfactory treatment with good prognostic.

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O presente trabalho reporta as características clínicas e cirúrgicas de oito casos de cadelas portadoras de leiomioma vaginal, com histórico de aumento de volume na região perineal, aparecimento de massa pela vulva, disquezia, tenesmo e disúria. As pacientes foram submetidas à cirurgia de episiotomia para ressecção da massa neoplásica, e em quatro casos foi necessária a ovariossalpingo-histerectomia. Porém, uma delas apresentou recidiva, e, no segundo procedimento cirúrgico de exérese de neoformação, o histopatológico diagnosticou leiomiossarcoma. A paciente ainda apresentou mais duas recidivas, até o proprietário optar pela eutanásia. Decorridos quatro meses, as sete cadelas diagnosticadas com leiomioma não apresentaram recidiva, e os proprietários relataram ausência de sinais relacionados com a doença descrita. Conclui-se que a episiotomia para ressecção da massa vaginal e a ovariossalpingo-histerectomia nas cadelas inteiras nos casos de tumores vaginais benignos são tratamentos satisfatórios, com bom prognóstico, ao contrário do leiomiossarcoma.(AU)

This study reports the clinical and surgical procedures of eight cases of bitches with vaginal leiomyoma. All animals presented increased volume in the perineal region, and exteriorization of the vulva, dyschezia, tenesmus and dysuria. The patients underwent episiotomy surgery for resection of the neoplastic mass, and ovariosalpingohisterectomy in four cases. However, one had recurrence on the second surgical procedure for removal of neoformation, histopathological diagnosed leiomyosarcoma, the patient also had two more relapses, until the owner chose euthanasia. After four months, the seven dogs diagnosed with leiomyoma showed no recurrence and the owners reported no signs of the disease described. We concluded that episiotomy for vaginal mass resection combined with ovariohysterectomy in cases of benign vaginal tumors have shown satisfactory treatment with good prognostic.(AU)

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Elleiomioma es un tumor benigno originado a partir de células de músculo liso. La mayoría de tumores benignos dei intestino delgado no muestran síntomas y suelen ser hallazgos incidentales durante procedimientos como Ia laparotomía exploratoria o necropsia. Sin embargo, dependiendo dei tamaõo dei tudisminución de lumen asa intestinal puede conducir a signos clínicos tales como cólico y compresión. EI pestudio reporta un caso de un caballo pérdida de peso presentando cuatro anos de edad, Ia fatiga después ejercicio y calambres recurrentes. Los ensayos identificados fue una masa dura, redonda en Ia región dei fiizquierdo de aspecto ecográfico heterogéneo. Laparotomía exploratoria se realizó revelando una masa tuque invade ellumen dei yeyuno dei mango y el plexo vascular mesentérica. Esta masa se eliminó a través de enterectomía y se mantuvo citológico e histológico diagnosticar un leiomioma. Oespués de 19 días tue dadoalta el paciente y el propietario informó el aumento de peso y un mejor rendimiento.

Leiomyoma is a benign tumor originating from smooth muscle cells. Most small intestinetumors don't show clinical signs and usually are incidental findings during procedures like exploratoryor necropsy. However, depending on the size of the tumor, the reduced lumen of intestinal loop mayclinical signs of colic and impactation. This present paper reports a case of a four year old equine thatprogressive weight loss, post exercise fatigue and recurrent colic. Through examination, a rigid roundheterogeneous ultrassonographic appearance mass was found in the left flank. An exploratory celiomperformed revealing a mass tumor located in jejunum invading the lumen and the mesenteric vascularThis mass was removed through enterectomy and held cytological and histopathological exams dignleiomyoma. After 19 days the pacient was discharged and the owner reported weight gain and pertoimprovement.

Leiomioma é um tumor benigno originário de células do músculo liso. A maioria dos tumores benignos de intestino delgado não demonstram sintomas e geralmente são achados acidentais durante outros procedimentos como celiotomia exploratória ou necrópsia. Porém, dependendo do tamanho do tumor a diminuição do lúmen da alça intestinal pode levar a sinais de abdômen agudo compatíveis com afecções não estranguladas do intestino dos equinos. O presente trabalho relata o caso de um equino de quatro anos de idade que apresentava emagrecimento progressivo, fadiga pós-exercício e cólicas recidivantes. Após palpação retal e exame ultrassonográfico foi identificada uma massa rígida e arredondada em região do flanco esquerdo. Foi realizada celiotomia exploratória revelando uma massa tumoral em jejuno invadindo o lúmen da alça e o plexo vascular mesentérico. Essa massa foi removida através de uma enterectomia e realizou-se exame citológico e histopatológico diagnosticando um leiomioma. Após 19 dias o paciente recebeu alta e proprietário relatou ganho de peso e melhora na performance após a alta médica.

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Background: Gastric neoplasms are uncommon in dogs, especially those affecting smooth muscle layers. Leiomyoma is a smooth muscle benign neoplasm, which requires surgical resection. Pylorectomy and gastroduodenostomy (Billroth I procedure) is the most indicated technique in cases not affecting the biliary and pancreatic tracts. Thus, the purpose of this study was to report a successful case of Billroth I procedure in a bitch presenting antrum pyloric obstructive leiomyoma. Case: A 12-year-old, non-spayed, Cocker Spaniel bitch was admitted presenting depression, hyporexia, postprandial vomiting and sparse episodes of hematemesis, for 30 days. Clinical suspicion on obstructive gastric outflow disease was established. Bloodwork (complete blood count, BUN, albumin, ALP and ALT), abdominal ultrasound and thoracic radiographs were assessed. The patient undergone upper gastrointestinal endoscopy. On endoscopic evaluation, small hemorrhagic mucosa ulcers were visualized on the gastric body, antrum and pylorus. Moreover, a sessile, ulcerated, round-shape and infiltrated antral-pyloric mass was seen. The mass was 1.5-2.0 cm in diameter and apparently involved the smooth muscle layer, causing severe pyloric obstruction. However, endoscopic evaluation of the duodenum was possible. Several biopsy samples were taken from the neoplasm and sent for histopathologic assessment. The result was [...](AU)

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Gastric cancer in dogs is rare. Leiomyoma is a benign tumorthat occurs most commonly in the stomach of older dogs. Itssymptoms are associated with a functional disorder of the stomachflow. The best investigative tests for gastric cancer are abdominalultrasound and endoscopy; diagnosis is based on histopathologicexamination. Treatment of gastric cancer is performed by surgicalresection, with a good prognosis when complete tumor excisionis obtained. In this article, two cases of gastric leiomyomaare reported, both in older asymptomatic bitches where theleiomyoma was found by abdominal ultrasound. With thesurgical excision of the tumors, good survival of both animalswas attained.(AU)

Neoplasias gástricas em cães são raras. O leiomioma é umtumor benigno que ocorre comumente em estômago decães idosos. A sua sintomatologia é associada ao distúrbiofuncional do fluxo gástrico. Os exames mais indicados paraneoplasias gástricas são ultrassom abdominal e endoscopia,e seu diagnóstico baseia-se no exame histopatológico. O tratamentose dá por ressecção cirúrgica e o prognóstico é bomquando for obtida a excisão completa. O presente trabalhorelata dois casos de leiomioma gástrico, ambos em cadelasidosas assintomáticas, onde o leiomioma foi confirmado peloexame de ultrassom abdominal. A excisão cirúrgica dos tumoresfoi realizada.(AU)

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Elleiomioma es un tumor benigno originado a partir de células de músculo liso. La mayoría de tumores benignos dei intestino delgado no muestran síntomas y suelen ser hallazgos incidentales durante procedimientos como Ia laparotomía exploratoria o necropsia. Sin embargo, dependiendo dei tamaõo dei tudisminución de lumen asa intestinal puede conducir a signos clínicos tales como cólico y compresión. EI pestudio reporta un caso de un caballo pérdida de peso presentando cuatro anos de edad, Ia fatiga después ejercicio y calambres recurrentes. Los ensayos identificados fue una masa dura, redonda en Ia región dei fiizquierdo de aspecto ecográfico heterogéneo. Laparotomía exploratoria se realizó revelando una masa tuque invade ellumen dei yeyuno dei mango y el plexo vascular mesentérica. Esta masa se eliminó a través de enterectomía y se mantuvo citológico e histológico diagnosticar un leiomioma. Oespués de 19 días tue dadoalta el paciente y el propietario informó el aumento de peso y un mejor rendimiento.(AU)

Leiomyoma is a benign tumor originating from smooth muscle cells. Most small intestinetumors don't show clinical signs and usually are incidental findings during procedures like exploratoryor necropsy. However, depending on the size of the tumor, the reduced lumen of intestinal loop mayclinical signs of colic and impactation. This present paper reports a case of a four year old equine thatprogressive weight loss, post exercise fatigue and recurrent colic. Through examination, a rigid roundheterogeneous ultrassonographic appearance mass was found in the left flank. An exploratory celiomperformed revealing a mass tumor located in jejunum invading the lumen and the mesenteric vascularThis mass was removed through enterectomy and held cytological and histopathological exams dignleiomyoma. After 19 days the pacient was discharged and the owner reported weight gain and pertoimprovement.(AU)

Leiomioma é um tumor benigno originário de células do músculo liso. A maioria dos tumores benignos de intestino delgado não demonstram sintomas e geralmente são achados acidentais durante outros procedimentos como celiotomia exploratória ou necrópsia. Porém, dependendo do tamanho do tumor a diminuição do lúmen da alça intestinal pode levar a sinais de abdômen agudo compatíveis com afecções não estranguladas do intestino dos equinos. O presente trabalho relata o caso de um equino de quatro anos de idade que apresentava emagrecimento progressivo, fadiga pós-exercício e cólicas recidivantes. Após palpação retal e exame ultrassonográfico foi identificada uma massa rígida e arredondada em região do flanco esquerdo. Foi realizada celiotomia exploratória revelando uma massa tumoral em jejuno invadindo o lúmen da alça e o plexo vascular mesentérico. Essa massa foi removida através de uma enterectomia e realizou-se exame citológico e histopatológico diagnosticando um leiomioma. Após 19 dias o paciente recebeu alta e proprietário relatou ganho de peso e melhora na performance após a alta médica.(AU)

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RESUMO

El cáncer gástrico en perros son infrecuentes. El leiomioma es un tumor benigno que se presenta con mayor frecuencia en el estómago de los perros mayores. La sintomatología está associada con el trastorno funcional del flujo de estómago. La mejor investigación para el cáncer gástrico es la ecografía abdominal y el diagnóstico se basa en histopatológico. El tratamiento se administra con la resección quirúrgica, con un buen pronóstico cuando se obtiene la escisión completa. Presentamos dos casos de leiomioma gástrico, tanto en perras mayores asintomáticos, donde el leiomioma fue encontrado por ultrasonido abdominal. Escisión quirúrgica Held del nódulo, con una buena supervivencia.(AU)

Gastric cancer in dogs are rare. Leiomyoma is a benign tumor that occurs most commonly in the stomach of older dogs. Symptomatology is associated with functional disorder of the stomach flow. The best investigation for gastric cancer is the abdominal ultrasound and the diagnosis is based on histopathological. Treatment of gastric cancer is by surgical resection, with a good prognosis when complete excisionis obtained. In this article, we report two cases of gastric leiomyoma, both in asymptomatic older bitches, where the leiomyoma was found by abdominal ultrasound. Held surgical excision ofthe nodule, with good survival.(AU)

Neoplasias gástricas em cães são raras. O leiomioma é o tumor benigno que ocorre mais comumente em estômago de cães idosos. Sintomatologia é associada ao distúrbio funcional do fluxo gástrico. O exame mais indicado para neoplasias gástricas é o ultrassom abdominal e o diagnóstico baseia-se no histopatológico. O tratamento se dá por ressecção cirúrgica, sendo o prognóstico bom quando a excisão completa for obtida. Neste trabalho relatamos dois casos de leiomioma gástrico, ambos em cadelas idosas assintomáticas, onde o leiomioma foi achado de ultrassom abdominal. Realizou-se excisão cirúrgica do nódulo, com boa sobrevida.(AU)

Assuntos

RESUMO

Gastric cancer in dogs is rare. Leiomyoma is a benign tumorthat occurs most commonly in the stomach of older dogs. Itssymptoms are associated with a functional disorder of the stomachflow. The best investigative tests for gastric cancer are abdominalultrasound and endoscopy; diagnosis is based on histopathologicexamination. Treatment of gastric cancer is performed by surgicalresection, with a good prognosis when complete tumor excisionis obtained. In this article, two cases of gastric leiomyomaare reported, both in older asymptomatic bitches where theleiomyoma was found by abdominal ultrasound. With thesurgical excision of the tumors, good survival of both animalswas attained.

Neoplasias gástricas em cães são raras. O leiomioma é umtumor benigno que ocorre comumente em estômago decães idosos. A sua sintomatologia é associada ao distúrbiofuncional do fluxo gástrico. Os exames mais indicados paraneoplasias gástricas são ultrassom abdominal e endoscopia,e seu diagnóstico baseia-se no exame histopatológico. O tratamentose dá por ressecção cirúrgica e o prognóstico é bomquando for obtida a excisão completa. O presente trabalhorelata dois casos de leiomioma gástrico, ambos em cadelasidosas assintomáticas, onde o leiomioma foi confirmado peloexame de ultrassom abdominal. A excisão cirúrgica dos tumoresfoi realizada.

Assuntos

RESUMO

A dermatofibrose nodular é uma síndrome em que o aparecimento de nódulos dérmicos fibróticos é associado a uma doença cística renal concomitante e progressiva, que se apresenta em cães de meia-idade a idosos da raça pastor alemão. Supõe-se que para essa síndrome haja base genética. Os principais sinais clínicos são dermatológicos, e incluem pápulas e nódulos nos membros (carpo, tarso, metacarpo e metatarso), dígitos, região cefálica, perilabial e, mais raramente, tronco. Os nódulos são firmes e hiperpigmentados, podendo ser cutâneos ou subcutâneos. Sinais sistêmicos também são observados e relacionados. Há insuficiência renal secundária devido à presença de cistos renais unilaterais ou bilaterais, cistadenoma ou cistadenocarcinoma renal, além de leiomiomas uterinos concomitantes. O diagnóstico é obtido por histopatológico das lesões cutâneas e massa renal. Não existe tratamento efetivo para essa síndrome. O objetivo deste trabalho é relatar um caso de dermatofibrose nodular em um cão macho da raça pastor alemão.(AU)

Nodular dermatofibrosis is a syndrome that affects middle-aged to old German shepherds, in which the appearance of dermal fibrotic nodules is associated with a concomitant and progressive kidney cystic disease. The cause is putatively genetic and the main clinical signs are of dermatological character, including papules and nodules on the limbs (carpus, tarsus, metacarpus and metatarsus), digits, cephalic region, and the trunk, albeit less frequently. The nodules are firm and hyperpigmented and can be cutaneous or subcutaneous. Systemic signs are also observed and related. There can be kidney insufficiency secondary to unilateral or bilateral kidney epithelial cysts, kidney cystadenoma or cystadenocarcinoma, as well as concomitant uterine leiomyomas. Diagnosis is obtained by histopathology of skin lesions and of the kidney mass. There is no effective treatment for this syndrome. The aim of this study is to report a case of nodular dermatofibrosis in a male German shepherd.(AU)

La dermatofibrosis nodular es un síndrome en el cual se asocian la presencia de nódulos dérmicos fibróticos a una enfermedad renal cística y progresiva, que suele presentarse en perros Ovejeros alemanes de edad media a viejos. Se cree que existe una base genética para este síndrome. Los principales signos clínicos son dermatológicos, como pápulas y nódulos en los miembros (carpo, tarso, metacarpo y metatarso), dígitos, región cefálica, región perilabial y, raramente, en tronco. Los nódulos son firmes e hiperpigmentados, y pueden ser cutáneos o subcutáneos. También pueden observarse alteraciones sistémicas relacionadas con esta enfermedad. La insuficiencia renal es secundaria a la presencia de quistes renales (uni o bilaterales), y neoplasias como adenomas y adenocarcinomas de riñón, además de leiomiomas uterinos. El diagnóstico se consigue a través de la histopatología de las lesiones cutáneas y de la masa renal. No existe un tratamiento efectivo contra este síndrome. El objetivo de este trabajo es relatar un caso de dermatofibrosis nodular en um perro Ovejero alemán.(AU)

Assuntos