RESUMEN
The recent coronavirus infectious disease (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is placing health systems in serious challenges worldwide. Shocking statistics each day has prompted the World Health Organization to officially declare the COVID-19 outbreak as a pandemic in March 2020. Preliminary studies have shown increased mortality in patients with solid cancers and infection by SARS-CoV-2. Until now, the evidence on the behavior of COVID-19 in patients with a history of thyroid cancer remains scarce, and most of the recommendations given are based on common sense. Therefore, in this viewpoint, we present a brief review of several challenges we are frequently facing during this pandemic and a series of recommendations based on what we have implemented in our clinical practice at a university hospital currently mostly dedicated to COVID-19.
Asunto(s)
Betacoronavirus , Infecciones por Coronavirus/epidemiología , Neumonía Viral/epidemiología , Neoplasias de la Tiroides/epidemiología , Biopsia con Aguja Fina/efectos adversos , COVID-19 , Comorbilidad , Infecciones por Coronavirus/inmunología , Humanos , Sistema Inmunológico , Radioisótopos de Yodo/efectos adversos , Radioisótopos de Yodo/uso terapéutico , Pandemias , Neumonía Viral/inmunología , Inhibidores de Proteínas Quinasas/efectos adversos , Radioterapia/efectos adversos , Factores de Riesgo , SARS-CoV-2 , Neoplasias de la Tiroides/inmunología , Neoplasias de la Tiroides/terapia , Tiroxina/uso terapéutico , Organización Mundial de la SaludRESUMEN
BACKGROUND: Puncture biopsy and fine needle aspiration guided by endoscopic ultrasound has been used as an effective technique and is quickly becoming the procedure of choice for diagnosis and staging in patients suspected of having pancreatic cancer. This procedure has replaced retrograde cholangiopancreatography and brush cytology due to its higher sensitivity for diagnosis, and lower risk of complications. OBJECTIVE: To assess the levels of pancreatic enzymes amylase and lipase, after the puncture biopsy and fine needle aspiration guided by endoscopic ultrasound in pancreatic lesions and the frequency of post-puncture acute pancreatitis. MATERIAL AND METHODS: A longitudinal and descriptive study of consecutive cases was performed on outpatients submitted to puncture biopsy and fine needle aspiration guided by endoscopic ultrasound in pancreatic lesions. Levels of pancreatic enzymes such as amylase and lipase were measured before and after the pancreatic puncture. Finally we documented post-puncture pancreatitis cases. RESULTS: A total of 100 patients who had been diagnosed with solid and cystic lesions were included in the study. Significant elevation was found at twice the reference value for lipase in 5 cases (5%) and for amylase in 2 cases (2%), none had clinical symptoms of acute pancreatitis. Eight (8%) of patients presented with mild nonspecific pain with no enzyme elevation compatible with pancreatitis. CONCLUSION: Pancreatic biopsy needle aspiration guided by endoscopic ultrasound was associated with a low rate of elevated pancreatic enzymes and there were no cases of post-puncture pancreatitis.
Asunto(s)
Amilasas/sangre , Biopsia/métodos , Lipasa/sangre , Enfermedades Pancreáticas/patología , Pancreatitis/enzimología , Ultrasonografía Intervencional , Enfermedad Aguda , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Biopsia/efectos adversos , Biopsia con Aguja Fina/efectos adversos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Páncreas/lesiones , Páncreas/patología , Enfermedades Pancreáticas/diagnóstico por imagen , Pancreatitis/etiología , Estudios Prospectivos , Sensibilidad y Especificidad , Adulto JovenAsunto(s)
Biopsia con Aguja Fina/efectos adversos , Carcinoma de Células Pequeñas/patología , Neoplasias Pulmonares/patología , Siembra Neoplásica , Neoplasias Torácicas/secundario , Humanos , Pulmón/patología , Masculino , Persona de Mediana Edad , Tomografía de Emisión de Positrones , Neoplasias Torácicas/patologíaRESUMEN
El carcinoma de tiroides ha aumentado su incidencia en los últimos años. Su diagnóstico rápido y consiguiente tratamiento son necesarios para una mayor sobrevida del paciente. El ultrasonido aun es la prueba diagnóstica de mayor utilidad. La biopsia por aspiración por aguja fina guiada por ultrasonido ha permitido disminuir los falsos negativos, así como incrementar la eficacia y sensibilidad de esta prueba. La cirugía es la mejor opción curativa que tiene la enfermedad, su extensión es aun controversial. El tratamiento en equipo multidisciplinario ha hecho avanzar en ello y optimizar el tiempo de diagnóstico, los métodos, así como el tipo de tratamiento a utilizar(AU)
Thyroidal carcinoma incidence has increased over recent years. Quick diagnosis and arranged treatment are necessary for the patient’s improved survival. Ultrasound continues to be the diagnostic test of greater usefulness. Ultrasound-guided aspiration biopsy has decreases the false-negative results, as well as this test’s efficacy and sensibility have increased. Surgery is the best healing choice against the disease, though its extension is even controversial. Treatment by multidisciplinary teams has prospered it optimized diagnosis time and methods, as well as the type of treatment to use(AU)
Asunto(s)
Humanos , Femenino , Adulto , Biopsia con Aguja Fina/efectos adversos , Neoplasias de la Tiroides/diagnóstico por imagen , Neoplasias de la Tiroides/terapiaRESUMEN
OBJECTIVE: Fine-needle aspiration cytology is a valuable method for preoperative assessment of head and neck tumors. However, its accuracy in detection of salivary gland masses is controversial compared with other methods. The aim of this work was to evaluate the effectiveness and accuracy of fine-needle aspiration cytology (FNAC) in the diagnosis of parotid gland masses. MATERIAL AND METHODS: Over a 10-year period, 126 parotid gland masses were resected. Retrospective chart reviews of 114 patients were performed. The results of FNAC and final histological diagnosis were compared and the accuracy of FNAC was determined. RESULTS: Final histological evaluation revealed 11 malignant tumors and 103 benign lesions. Pleomorphic adenoma was the most common neoplasm (63%), followed by Warthin's tumor (17.5%). The sensitivity of FNAC in detecting malignant tumors was 73% and the specificity was 97%. Positive predictive value (PPV) was 73% and negative predictive value (NPV) was 97%. The overall accuracy of FNAC in detecting parotid masses was 95%. False-negative diagnosis was found in mucoepidermoid carcinoma, acinic cell carcinoma, and epithelial-myoepithelial carcinoma whereas there was false-positive diagnosis in cases of pleomorphic adenoma and normal parotid gland tissue. CONCLUSION: FNAC is a reliable minimally invasive diagnostic method with a high sensitivity in diagnosis of lesions in parotid glands. The sensitivity of detection of malignant tumors in parotid glands was low due to the biopsy technique used, and depended on tumor location. Postoperative complications decreased after superficial parotidectomy.
Asunto(s)
Adenoma Pleomórfico/patología , Biopsia con Aguja Fina/métodos , Carcinoma/patología , Glándula Parótida/patología , Neoplasias de la Parótida/patología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Biopsia con Aguja Fina/efectos adversos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias , Reproducibilidad de los Resultados , Estudios Retrospectivos , Sensibilidad y Especificidad , Adulto JovenRESUMEN
BACKGROUND: The availability of portable ultrasound (US) guidance has led to usage by subspecialists outside of radiology. Several subspecialties now perform percutaneous fine-needle aspiration (PFNA) for lesions relevant to their expertise. This is a study of US-guided PFNA performed by interventional pulmonologists at a single institution. METHODS: We retrospectively reviewed serial US-guided PFNAs performed at an institution with the goals of defining yield, factors relating to yield, and complication rates. RESULTS: A total of 111 consecutive lesions were evaluated and 109 biopsied during the study period. Diagnosis was established in 81% of cases (90/109), with a total complication rate of 15% but only 1 case of a need for a higher level of care. Factors associated with increased diagnostic yield were suspicion of malignancy, increased size, and pleural adhesions (lack of pleural sliding). The presence of pleural sliding was associated with increased pneumothorax and decreased yield. CONCLUSIONS: US-guided PFNA is a valuable tool for the interventional pulmonologist. Both size and pleural sliding have an impact on diagnostic yield.
Asunto(s)
Biopsia con Aguja Fina/efectos adversos , Biopsia con Aguja Fina/métodos , Neoplasias Pulmonares/patología , Enfermedades Pleurales/patología , Ultrasonografía Intervencional/efectos adversos , Ultrasonografía Intervencional/métodos , Adenocarcinoma/patología , Adenocarcinoma del Pulmón , Adulto , Carcinoma de Células Escamosas/patología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pleura/patología , Neumotórax/etiología , Valor Predictivo de las Pruebas , Neumología/instrumentación , Neumología/métodos , Estudios RetrospectivosRESUMEN
La importancia del estudio del nódulo tiroideo es excluir una lesión maligna, ya que, aunque la mayoría son lesiones benignas, existe un riesgo de malignidad de un 5-10 por ciento. La mayoría de estos son carcinomas bien diferenciados, que se originan del epitelio folicular. A pesar de que la mayoría de las lesiones son benignas, la distinción entre estas y los carcinomas, es crucial para un tratamiento y seguimiento apropiado. La biopsia por punción con aguja fina permite realizar el diagnóstico en la mayoría de los casos, sin embargo, esta presenta limitaciones, particularmente referidas al diagnóstico de las lesiones foliculares. En un esfuerzo por mejorar la precisión diagnóstica de la biopsia y ofrecer nuevos criterios para el diagnóstico, múltiples marcadores moleculares han sido propuestos, algunos de los cuales presentan gran aprobación, mientras que otros requieren aún validación para su implementación. En este artículo se realiza una revisión actualizada de los marcadores moleculares que presentan mayor número de evidencias, los que son metodológicamente más asequibles y potencialmente utilizables para el diagnóstico prequirúrgico del nódulo tiroideo(AU)
The importance of the study of the thyroid nodule lies in excluding the possibility of a malignant lesion because the majority of lesions are benign but there is a malignancy risk of 5 to 10 percent. Most of them are well differentiated carcinomas originating in the follicular epithelium. In spite of the fact that the majority are benign lesions, distinguishing them from carcinomas is crucial to treatment and adequate follow-up. Fine-needle biopsy allows making the diagnosis in most of cases. However, this method is restricted, particularly when diagnosing follicular lesions. In an effort to improve the diagnostic accuracy of biopsy and to provide new diagnosing criteria, a number of molecular markers have been put forward, some of which has wide range of approval whereas others still awaits to be validated for further implementation. This article presented an updated review of molecular markers with higher number of evidence, more accessible and potentially usable from a methodological viewpoint for diagnosis of the thyroid nodule before surgery(AU)
Asunto(s)
Humanos , Neoplasias de la Tiroides/diagnóstico , Biopsia con Aguja Fina/efectos adversos , Patología Molecular/métodosRESUMEN
El linfoma no Hodgkin primario de la glándula suprarrenal es una patología muy poco común. Su diagnóstico inicial es difícil siendo este histológico. El linfoma B difuso de células grandes es el tipo histológico más frecuente. Se presenta el caso mujer de 62 años a la que se le realiza tomografía axial computarizada abdominal que muestra una masa de 18 cms dependiente de la glándula suprarrenal y con características de carcinoma. Se realiza exéresis de la tumoración, siendo la anatomía patológica linfoma difuso de célula grande B. Este tipo de linfoma tiene mal pronóstico describiéndose supervivencias medias en torno a los 13 meses. No existe un régimen terapéutico bien definido; aunque el tratamiento más aceptado es el esquema R-CHOP. El papel de la radioterapia y de la exéresis tumoral no está claramente establecido. El linfoma suprarrenal primario debe tenerse en cuenta en el diagnóstico diferencial de pacientes que presentan una masa suprarrenal. Ante la sospecha de esta patología es preferible realizar una biopsia con aguja guiada por prueba de imagen para evitar una intervención quirúrgica innecesaria(AU)
Primary non- Hodgkin`s lymphoma of the adrenal gland is very rare. Its initial diagnosis is difficult and needs to be histological. Diffuse large B- cell lymphoma is the most common histological type. This is the report of a 62 years old woman, who was performed abdominal tomography to disclose a 18 cm tumor in the adrenal gland with carcinoma characteristics. The tumor was removed and the final pathologic diagnosis was diffuse large B-cell lymphoma. This type of lymphoma has poor prognosis since the average survival rates are roughly 13 months. There is no well-defined therapeutic regimen, although the most widely accepted treatment is R-CHOP scheme. The roles of radiotherapy and tumor resection are not clearly established. Primary adrenal lymphoma should be considered in the differential diagnosis of patients presenting with an adrenal mass. When this condition is suspected, then it is advisable to perform a imaging-guided needle biopsy to avoid unnecessary surgery(AU)
Asunto(s)
Humanos , Femenino , Persona de Mediana Edad , Glándulas Suprarrenales/patología , Biopsia con Aguja Fina/efectos adversos , Linfoma de Células B Grandes Difuso/diagnóstico por imagen , Linfoma no Hodgkin/diagnóstico por imagenRESUMEN
Se presenta una paciente femenina de 69 años de edad, quien acudió en varias ocasiones al consultorio del médico de familia por notar aumento de volumen en la mama izquierda, considerado como resultado del efecto adverso a la ingestión de espironolactona. Se suspende el medicamento sin mejoría clínica. Se indicó ultrasonido de mama y se informa imagen de aspecto tumoral debajo del tejido mamario, que impresiona estar en relación con el músculo pectoral mayor; a esto se asocia una alteración del patrón mamario. Se realizó mamografía diagnóstica, se encuentra asimetría de volumen de la mama izquierda y una zona de aumento de la densidad cerca del pectoral, sin visualizar nódulo definido. Se realizó tomografía axial computarizada simple y contrastada. Se aprecia masa tumoral del músculo pectoral mayor izquierdo que infiltra tejido mamario y mediastino anterior, con diagnóstico imaginológico sugestivo de tumor del músculo pectoral mayor izquierdo. Se realizó biopsia por aguja fina de la lesión, guiada por ultrasonido y el diagnóstico fue carcinoma lobulillar infiltrante de mama. Se concluye que el comportamiento imaginológico puede estar relacionado con las pobres manifestaciones clínicas y, por tanto, con el diagnóstico tardío(AU)
The case of 69 years-old woman, who went several times to the family physician's office because of the increased volume of her left breast, was presented. This problem was considered to result from the adverse effect of the spironolactone intake. The drug consumption ceased but there was no clinical improvement. Breast ultrasound test was indicated in which a tumor-like image below the breast tissue was observed; it seemed to be related to the major pectoralis muscle, additionally, there was altered breast pattern. Diagnostic mammography was performed, asymmetric volume of the left breast was found together with an increased density area located near the pectoralis, without viewing a defined nodule. Simple and contrast computerized tomography were also performed. It was observed that there was tumor mass in the left pectoralis major muscle infiltrating into the breast tissue and the anterior mediastinum, with imaging diagnosis suggestive of left pectoralis major muscle tumor. Ultrasound-guided fine-needle biopsy of the lesion was applied and the resulting diagnosis was infiltrating lobular carcinoma of the breast. It was concluded that the imaging result could be related to poor clinical manifestations and thus, to late diagnosis(AU)
Asunto(s)
Humanos , Femenino , Anciano , Ultrasonografía Mamaria , Tomografía Computarizada Espiral/efectos adversos , Carcinoma Lobular/diagnóstico , Biopsia con Aguja Fina/efectos adversosRESUMEN
Las enfermedades del tiroides ocupan un lugar importante, por su frecuencia y variedad, entre las afecciones endocrinas del niño y el adolescente, y aunque puedan padecer las mismas enfermedades tiroideas del adulto, presentan afecciones específicas de la edad, cuyo diagnóstico y tratamiento adecuado puede prevenir los efectos devastadores e irreversibles que estas pueden producir. Se presenta, con interés de actualizar y establecer consenso, el enfoque terapéutico de algunas tiroidopatías de la infancia, en orden de importancia y frecuencia, como es el nódulo de tiroides, el bocio y el hipertiroidismo(AU)
Thyroid diseases hold an important place because of their frequency and variety in the endocrine diseases affecting the child and the adolescent. Although both can suffer the same thyroid diseases as the adults, there are specific illnesses of the age, the diagnosis and treatment of which may prevent the devastating and irreversible effects that they can bring. For the purpose of updating information and reaching a consensus, this paper presented the therapeutic approach to some thyroid diseases of the childhood by order of importance and frequency, such as the thyroid nodule, the goiter and the hyperthyroidism(AU)
Asunto(s)
Humanos , Niño , Adolescente , Enfermedades de la Tiroides/epidemiología , Tiroxina/uso terapéutico , Nódulo Tiroideo/terapia , Bocio/terapia , Hipertiroidismo/terapia , Biopsia con Aguja Fina/efectos adversosRESUMEN
OBJECTIVE: To analyze the cytological findings of CT-guided percutaneous fine-needle aspiration biopsies of the lung, to demonstrate the diagnostic feasibility of the method in the investigation of pulmonary lesions, and to determine the complications of the procedure, evaluating its safety. METHODS: A retrospective analysis of 89 patients with various types of pulmonary lesions who underwent 97 procedures over a period of five years. The patients were divided into groups regarding the indication for the procedure: suspicion of primary lung cancer (stages IIIB or IV); suspicion of lung cancer (stages I, II, or IIIA) and clinical contraindications for surgery; suspicion of pulmonary metastasis from other organs; and pulmonary lesions with benign radiological aspect. All of the procedures were performed with 25-gauge needles and were guided by spiral CT. The final diagnosis was confirmed by surgical biopsy and clinical/oncological follow-up. For the analysis of complications, the total number of procedures was considered. RESULTS: The main indication for the procedure was suspicion of advanced-stage primary lung cancer. The accuracy of the method for malignant lesions was 91.5%. The lesion was confirmed as cancer in 73% of the patients. The major complication was pneumothorax (27.8%), which required chest tube drainage in 12.4% of the procedures. CONCLUSIONS: The principal indication for CT-guided fine-needle biopsy was suspicion of primary lung cancer in patients who were not surgical candidates. The procedure has high diagnostic feasibility for malignant pulmonary diseases. The most prevalent complication was pneumothorax. However, in most cases, chest tube drainage was unnecessary. No deaths were related to the procedure.
Asunto(s)
Biopsia con Aguja Fina/efectos adversos , Neoplasias Pulmonares/patología , Pulmón/patología , Neumotórax/etiología , Adulto , Anciano , Anciano de 80 o más Años , Biopsia con Aguja Fina/métodos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Radiografía Intervencional , Estudios Retrospectivos , Sensibilidad y Especificidad , Tomografía Computarizada por Rayos XRESUMEN
OBJETIVO: Analisar os resultados citológicos de biópsias aspirativas percutâneas por agulha fina guiada por TC de pulmão, demonstrar a viabilidade diagnóstica do método na investigação de lesões pulmonares e determinar as complicações do procedimento, avaliando sua segurança. MÉTODOS: Análise retrospectiva com 89 pacientes com tipos diversos de lesões pulmonares que foram submetidos a 97 procedimentos em um período de cinco anos. Os pacientes foram divididos em grupos de acordo com a indicação para o procedimento: suspeita de neoplasia pulmonar primária (estádios IIIB e IV); suspeita de neoplasia pulmonar (estádios I, II e IIIA) e contraindicações clínicas para cirurgia; suspeita de metástase pulmonar oriunda de outros órgãos; e lesões pulmonares com aspecto radiológico benigno. O método foi padronizado com agulha fina de 25 gauge. Todos os procedimentos foram guiados por TC helicoidal. O diagnóstico final foi confirmado por biópsias cirúrgicas e acompanhamento clínico/oncológico. Para a análise das complicações, foi considerado o número total de procedimentos. RESULTADOS: A principal indicação do procedimento foi a suspeita de neoplasia pulmonar primária avançada. O método apresentou acurácia de 91,5 por cento para lesões malignas. A lesão foi confirmada como neoplásica em 73 por cento dos pacientes. A principal complicação foi o pneumotórax (27,8 por cento), com necessidade de drenagem tubular em 12,4 por cento do total de procedimentos. CONCLUSÕES: A principal indicação para biópsia por agulha fina guiada por TC foi a suspeita de doença neoplásica pulmonar primária sem possibilidade de tratamento cirúrgico. O procedimento tem alta viabilidade diagnóstica para doenças pulmonares de origem neoplásica. A mais prevalente complicação foi o pneumotórax, sem necessidade de drenagem tubular na maioria dos casos. Não ocorreram óbitos relacionados ao procedimento.
OBJECTIVE: To analyze the cytological findings of CT-guided percutaneous fine-needle aspiration biopsies of the lung, to demonstrate the diagnostic feasibility of the method in the investigation of pulmonary lesions, and to determine the complications of the procedure, evaluating its safety. METHODS: A retrospective analysis of 89 patients with various types of pulmonary lesions who underwent 97 procedures over a period of five years. The patients were divided into groups regarding the indication for the procedure: suspicion of primary lung cancer (stages IIIB or IV); suspicion of lung cancer (stages I, II, or IIIA) and clinical contraindications for surgery; suspicion of pulmonary metastasis from other organs; and pulmonary lesions with benign radiological aspect. All of the procedures were performed with 25-gauge needles and were guided by spiral CT. The final diagnosis was confirmed by surgical biopsy and clinical/oncological follow-up. For the analysis of complications, the total number of procedures was considered. RESULTS: The main indication for the procedure was suspicion of advanced-stage primary lung cancer. The accuracy of the method for malignant lesions was 91.5 percent. The lesion was confirmed as cancer in 73 percent of the patients. The major complication was pneumothorax (27.8 percent), which required chest tube drainage in 12.4 percent of the procedures. CONCLUSIONS: The principal indication for CT-guided fine-needle biopsy was suspicion of primary lung cancer in patients who were not surgical candidates. The procedure has high diagnostic feasibility for malignant pulmonary diseases. The most prevalent complication was pneumothorax. However, in most cases, chest tube drainage was unnecessary. No deaths were related to the procedure.
Asunto(s)
Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Biopsia con Aguja Fina/efectos adversos , Neoplasias Pulmonares/patología , Pulmón/patología , Neumotórax/etiología , Biopsia con Aguja Fina/métodos , Radiografía Intervencional , Estudios Retrospectivos , Sensibilidad y Especificidad , Tomografía Computarizada por Rayos XRESUMEN
OBJECTIVE: Distinct aspects can influence the complication rates of computed tomography-guided percutaneous fine needle aspiration biopsy of lung lesions. The purpose of the current study is to determine the influence of radiological techniques and clinical characteristics in predicting complications from this procedure. SUBJECTS AND METHODS: A retrospective study was developed involving 340 patients who were submitted to a consecutive series of 362 computed tomography-guided fine needle aspiration biopsies of lung lesions between July 1996 and June 2004, using 22-gauge needles (CHIBA). Variables such as the radiological characteristics of the lesions, secondary pulmonary radiological findings, co-morbidities, and aspects concerning the procedure were studied. RESULTS: The diameters of the lung lesions varied from 9 to 140 mm, with a mean of 51.5 ± 24.3 mm and median of 40mm. The depth of the lesions varied from 10 mm to 130 mm, with a mean of 44 ± 20.9mm, and median median of 52 mm. Complications occurred in 52 (14.4%) cases, pneumothorax being the most frequent, with 40 (11.1%) cases, followed by hemoptisis with 7 (1.9%) cases, and hematoma with 4 (1.1%) cases. Lesions that did not contact the pleura, with normal pulmonary tissue interposition between lesion and pleura, had higher complication rates, with 22 (22%) cases, than lesions that contact the pleura, with 6 (9%) cases, with a statistically significant difference (p = 0.03). CONCLUSIONS: CT-guided percutaneous fine needle aspiration biopsy of lung lesions had a lower rate of complications in our study and presented more rates of complications on lesions that lack pleural contact.
Asunto(s)
Biopsia con Aguja Fina/efectos adversos , Enfermedades Pulmonares/patología , Pulmón/patología , Femenino , Humanos , Enfermedades Pulmonares/diagnóstico por imagen , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Estudios Retrospectivos , Tomografía Computarizada por Rayos X/métodosRESUMEN
Para a obtenção do diagnóstico definitivo do osteossarcoma realizam-se exames citopatológico e histopatológico. O material para exame citopatológico é coletado através de punção aspirativa por agulha fina (PAAF), já para a realização do exame histopatológico é necessário uma amostra de tamanho maior, geralmente conseguida através de biópsia incisional. Este trabalho tem como objetivo desenvolver uma técnica de coleta de material em cães com suspeita de osteossarcoma através de PAAF para a realização de exame histopatológico. Foram coletadas duas amostras de 12 cães suspeitos de osteossarcoma por PAAF. O material obtido pela primeira coleta foi utilizado para confirmar o diagnóstico através do exame citopatológico, enquanto que o material oriundo da segunda coleta foi fixado em formol a 10 por cento para a análise histopatológica. Quatro das 12 amostras (33,3 por cento) avaliadas histopatologicamente pela metodologia proposta obtiveram também o diagnóstico de osteossarcoma. Esses resultados apontam para uma possível adequação da técnica de coleta de material por PAAF para exame histopatológico.
Cytopathologic and histopathologic tests are important to obtain a definitive diagnosis of osteosarcoma. The sample for cytopathological exam is collected through fine-needle aspiration cytology (FNA). On the other hand, histopathological exams need a larger sample that is usually obtained by incisional biopsy. The objective of this article is to develop a FNA technique to biopsy and evaluate histopatologically samples of dogs with suspected osteosarcoma. Two FNS samples were collected from 12 such dogs. Samples obtained in the first procedure were examined cytologically. The material sampled at the second biopsy was fixed in 10 percent formalin and submitted to histopathological analysis. Four out of the 12 samples (33.3 percent) examined by the herein proposed method were diagnosed as osteosarcoma. These results indicate a possible adaptation of FNA for histopathological examination.
Asunto(s)
Animales , Perros , Biopsia con Aguja Fina , Osteosarcoma , Técnicas y Procedimientos Diagnósticos , Biopsia con Aguja Fina/efectos adversos , Técnicas de Laboratorio ClínicoRESUMEN
Para a obtenção do diagnóstico definitivo do osteossarcoma realizam-se exames citopatológico e histopatológico. O material para exame citopatológico é coletado através de punção aspirativa por agulha fina (PAAF), já para a realização do exame histopatológico é necessário uma amostra de tamanho maior, geralmente conseguida através de biópsia incisional. Este trabalho tem como objetivo desenvolver uma técnica de coleta de material em cães com suspeita de osteossarcoma através de PAAF para a realização de exame histopatológico. Foram coletadas duas amostras de 12 cães suspeitos de osteossarcoma por PAAF. O material obtido pela primeira coleta foi utilizado para confirmar o diagnóstico através do exame citopatológico, enquanto que o material oriundo da segunda coleta foi fixado em formol a 10 por cento para a análise histopatológica. Quatro das 12 amostras (33,3 por cento) avaliadas histopatologicamente pela metodologia proposta obtiveram também o diagnóstico de osteossarcoma. Esses resultados apontam para uma possível adequação da técnica de coleta de material por PAAF para exame histopatológico.(AU)
Cytopathologic and histopathologic tests are important to obtain a definitive diagnosis of osteosarcoma. The sample for cytopathological exam is collected through fine-needle aspiration cytology (FNA). On the other hand, histopathological exams need a larger sample that is usually obtained by incisional biopsy. The objective of this article is to develop a FNA technique to biopsy and evaluate histopatologically samples of dogs with suspected osteosarcoma. Two FNS samples were collected from 12 such dogs. Samples obtained in the first procedure were examined cytologically. The material sampled at the second biopsy was fixed in 10 percent formalin and submitted to histopathological analysis. Four out of the 12 samples (33.3 percent) examined by the herein proposed method were diagnosed as osteosarcoma. These results indicate a possible adaptation of FNA for histopathological examination.(AU)
Asunto(s)
Animales , Perros , Osteosarcoma/diagnóstico , Biopsia con Aguja Fina , Técnicas y Procedimientos Diagnósticos , Biopsia con Aguja Fina/efectos adversos , Técnicas de Laboratorio ClínicoRESUMEN
OBJECTIVE: Distinct aspects can influence the complication rates of computed tomography-guided percutaneous fine needle aspiration biopsy of lung lesions. The purpose of the current study is to determine the influence of radiological techniques and clinical characteristics in predicting complications from this procedure. SUBJECTS AND METHODS: A retrospective study was developed involving 340 patients who were submitted to a consecutive series of 362 computed tomography-guided fine needle aspiration biopsies of lung lesions between July 1996 and June 2004, using 22-gauge needles (CHIBA). Variables such as the radiological characteristics of the lesions, secondary pulmonary radiological findings, co-morbidities, and aspects concerning the procedure were studied. RESULTS: The diameters of the lung lesions varied from 9 to 140 mm, with a mean of 51.5 ± 24.3 mm and median of 40mm. The depth of the lesions varied from 10 mm to 130 mm, with a mean of 44 ± 20.9mm, and median median of 52 mm. Complications occurred in 52 (14.4 percent) cases, pneumothorax being the most frequent, with 40 (11.1 percent) cases, followed by hemoptisis with 7 (1.9 percent) cases, and hematoma with 4 (1.1 percent) cases. Lesions that did not contact the pleura, with normal pulmonary tissue interposition between lesion and pleura, had higher complication rates, with 22 (22 percent) cases, than lesions that contact the pleura, with 6 (9 percent) cases, with a statistically significant difference (p = 0.03). CONCLUSIONS: CT-guided percutaneous fine needle aspiration biopsy of lung lesions had a lower rate of complications in our study and presented more rates of complications on lesions that lack pleural contact.
Asunto(s)
Femenino , Humanos , Masculino , Persona de Mediana Edad , Biopsia con Aguja Fina/efectos adversos , Enfermedades Pulmonares/patología , Pulmón/patología , Enfermedades Pulmonares , Valor Predictivo de las Pruebas , Estudios Retrospectivos , Tomografía Computarizada por Rayos X/métodosRESUMEN
It is reported a rare complication after a fine needle aspiration biopsy of a breast angiosarcoma. A 30-years-old female presented with a right breast lump. An ovoid, hypoecoic lesion of 39 x 13 mm was detect by ultrasonography. A fine needle aspiration biopsy was carried out for diagnosis, but only blood was report. After the biopsy the skin showed a violaceous color, the lump was tender, reappeared in three instances and increased its size (15 cm). In spite of conservative management the pain and the mass did not disappear, then surgical management was decided. A soft, violaceous mass of 13 x 6 x 4 cm, with well demarcated boundaries was removed. A capillary and cavernous breast hemangioma was diagnosed. Four months later a recurrence presented, and a new excision was carried out with a resulting moderately differentiated angiosarcoma, then a simple mastectomy was performed for definitive treatment. On a literature search only one similar case was found. A recurrent haematoma after a fine needle aspiration biopsy of a breast tumor mandates to rule out an angiosarcoma.
Asunto(s)
Biopsia con Aguja Fina/efectos adversos , Neoplasias de la Mama/patología , Mama/lesiones , Hemangiosarcoma/patología , Hematoma/etiología , Adulto , Mama/cirugía , Neoplasias de la Mama/diagnóstico por imagen , Neoplasias de la Mama/cirugía , Femenino , Hemangiosarcoma/diagnóstico por imagen , Hemangiosarcoma/cirugía , Hematoma/diagnóstico por imagen , Hematoma/patología , Humanos , Mastectomía , Recurrencia , UltrasonografíaRESUMEN
The purpose of this study was to evaluate the safety of spleen aspiration as a sampling technique for the parasitological detection by culture and microscopy of Leishmania (chagasi) infantum. Two hundred and nine domiciled dogs from an endemic area for visceral leishmaniasis in Bahia State, Brazil, were studied. Most dogs (87%) were seropositive for anti-L. chagasi antibodies by ELISA. Clinical signs of disease were recorded and the animals monitored during and after spleen puncture in order to detect possible complications associated with the procedure. From a total of 257 splenic punctures in the 209 animals, only three minor events occurred, with no significant consequence for the animals and no association with risk factors. Leishmania was isolated from 149/180 (83%) seropositive dogs, and from 6/26 (23%) seronegative animals. The procedure did not cause adverse side effects or unnecessary suffering and confirmed the diagnosis in a large percentage of dogs. We conclude that spleen aspiration can be considered an effective and safe procedure for the definitive diagnosis of canine visceral leishmaniosis.