RESUMO

Introducción. El esplenúnculo se ha descrito con una incidencia global del 10 al 30 %. Puede ser una entidad de origen congénito o adquirida, frecuentemente está asociada a trauma abdominal o antecedente de esplenectomía por diversas causas. Caso clínico. Mujer en edad media, con antecedente de trauma abdominal y esplenectomía por ruptura traumática, quien 30 años después presenta un cuadro de dolor abdominal. Los estudios imagenológicos identificaron una masa sólida intrapancreática. Resultados. Fue llevada a pancreatectomía distal. Los hallazgos histológicos e inmunohistoquímicos confirmaron que la masa pancreática correspondía a un esplenúnculo intrapancreático adquirido, asociado al evento traumático previo. Conclusión. Los esplenúnculos suelen constituir un "incidentaloma". Los estudios imagenológicos se encuentran limitados, pues la tomografía computarizada, la resonancia nuclear magnética y la ultrasonografía presentan características imagenológicas similares con los tumores pancreáticos hipervascularizados, por lo que se debe practicar el estudio histopatológico durante su valoración. Esta entidad se debe incluir dentro de los diagnósticos diferenciales, con mayor énfasis en aquellos pacientes con historia de trauma abdominal y esplenectomía asociada, un escenario en el que esta lesión puede simular una neoplasia sólida del páncreas, con características malignas.

Introduction. Splenunculus has been described with an overall incidence of 10 to 30%. It can be an entity of congenital or acquired origin, it is frequently associated with abdominal trauma or a history of splenectomy for various reasons. Clinical case. Middle-aged woman, with a history of abdominal trauma and splenectomy due to traumatic rupture, who 30 years later presents with abdominal pain. Imaging studies identified a solid intrapancreatic mass. Results. She was taken to OR for distal pancreatectomy. The histological and immunohistochemical findings confirmed that the pancreatic mass corresponded to an acquired intrapancreatic splenunculus, associated with the previous traumatic event. Conclusion. Splenuncles usually constitute an "incidentaloma". Imaging studies are limited, since computed tomography, magnetic resonance imaging, and ultrasonography present similar imaging characteristics with hypervascularized pancreatic tumors, so histopathological study must be included during their evaluation. This entity should be included in the differential diagnoses, with greater emphasis on those patients with a history of abdominal trauma and associated splenectomy, a scenario in which this lesion can simulate a solid neoplasm of the pancreas, with malignant characteristics.

Assuntos

RESUMO

Introducción: El absceso esplénico es una entidad inusual que se observa en pacientes inmunodeprimidos por enfermedades como diabetes mellitus (DM), enfermedades hematooncológicas, síndrome de inmunodeficiencia adquirida (SIDA) y, en menor medida, en sujetos que presentaron traumatismo o infarto esplénico. El tratamiento ideal es la esplenectomía, aunque se deben considerar las alternativas conservadoras como drenaje percutáneo y resección laparoscópica. Se presenta un caso de un paciente con diagnóstico de absceso esplénico por salmonelosis, siendo este poco frecuente. Caso clínico: Paciente masculino de 53 años de edad con DM tipo 2. Refiere dolor abdominal difuso de aparición insidiosa tipo cólico de moderada intensidad, concomitante evacuaciones líquidas y alzas térmicas 40°. Al Examen físico FC: 114 lpm FR: 28 rpm TA: 130/70mmHg. Abdomen: globoso, RsHs presentes, depresible, doloroso a palpación con signos de irritación peritoneal. En radiografía de tórax se evidencia neumoperitoneo. Se realiza laparotomía xifopúbica, encontrando 1500ml de líquido purulento, absceso esplénico roto y hepatomegalia. Se realiza Esplenectomía + lavado y drenaje de cavidad. Conclusión: Los abscesos esplénicos son una entidad rara con manifestaciones clínicas no específicas. Métodos diagnósticos, la tomografía es el estudio de elección. El neumoperitoneo puede confundir el diagnostico realizándose de forma tardía por lo cual debemos tenerlo en cuenta como diagnostico diferencial. La esplenectomía es el tratamiento definitivo, el drenaje percutáneo se realiza en pacientes seleccionados(AU)

Introduction: The splenic abscess is an unusual entity that is observed in immunosuppressed patients due to diseases such as diabetes mellitus (DM), hemato-oncological diseases, acquired immunodeficiency syndrome (AIDS) and, to a lesser extent, in subjects who presented trauma or splenic infarction. The ideal treatment is splenectomy, although conservative alternatives such as percutaneous drainage and laparoscopic resection should be considered. We present a case of a patient with a diagnosis of splenic abscess due to salmonellosis, this being rare.Clinical case : A 53-year-old male patient with type 2 DM. Refers to diffuse abdominal pain of insidious onset of moderate intensity, colic type, concomitant liquid stools and temperature rises 40°. On physical examination HR: 114 bpm FR: 28 rpm BP: 130/70mmHg. Abdomen: globular, RsHs present, depressible, painful on palpation with signs of peritoneal irritation. The chest X-ray shows pneumoperitoneum. A xiphopubic laparotomy was performed, finding 1500ml of purulent fluid, a ruptured splenic abscess and hepatomegaly. Splenectomy + lavage and cavity drainage is performed.Conclusion : Splenic abscesses are a rare entity with non-specific clinical manifestations. Diagnostic methods, tomography is the study of choice. Pneumoperitoneum can confuse the diagnosis, being carried out late, which is why we must have it as a differential diagnosis. Splenectomy is the definitive treatment; percutaneous drainage is performed in selected patients(AU)

Assuntos

RESUMO

Splenosis is defined as the growth of ectopic splenic tissue, due to its direct seeding, usually seen after traumatic or surgical procedures to the spleen. It often occurs on highly vascularized surfaces such as the omentum or the mesentery, and grows in sessile form, supplied by adjacent vessels. Intestinal splenosis with endoluminal extension is extremely rare. We present a case of intestinal splenosis with endoluminal growth in a 14-year-old boy that provoked a small bowel intussusception requiring surgical resolution.

Assuntos

RESUMO

La esplenosis abdominal es el autotrasplante de tejido esplénico en la cavidad peritoneal en pacientes con antecedente de lesión traumática esplénica o esplenectomía. Es una condición asintomática y benigna que se diagnostica de forma incidental en estudios de imágenes o en cirugía. Las manifestaciones imaginológicas de la entidad generalmente se interpretan de manera equivocada como neoplasia secundaria. Presentamos un paciente con múltiples nódulos intraabdominales en tomografía computarizada (TC) de abdomen, secundarios a esplenosis abdominopélvica

Abdominal splenosis is the autotransplant of splenic tissue in the peritoneal cavity in patients with history of traumatic splenic injury and/or splenectomy. It is an asymptomatic and benign condition that is incidentally diagnosed in imaging studies or surgery. Imaging manifestations of this entity are generally misinterpreted as secondary neoplasia. We present a patient with multiple nodules in computed tomography (CT) of the abdomen, secondary to abdominopelvic splenosis.

Assuntos

RESUMO

The aim of this review was to present the main aspects of pleural diseases seen with conventional and advanced magnetic resonance imaging (MRI) techniques. This modality is considered to be the gold standard for the evaluation of the pleural interface, characterization of complex pleural effusion, and identification of exudate and hemorrhage, as well as in the analysis of superior sulcus tumors, as it enables more accurate staging. The indication for MRI of the thorax in the identification of these conditions is increasing in comparison to computerized tomography, and it can also be used to support the diagnosis of pulmonary illnesses. This literature review describes the morphological and functional aspects of the main benign and malignant pleural diseases assessed with MRI, including mesothelioma, metastasis, lymphoma, fibroma, lipoma, endometriosis, asbestos-related pleural disease, empyema, textiloma, and splenosis.

Assuntos

Assuntos

Assuntos

Assuntos

Assuntos

Assuntos

RESUMO

CONTEXT: Pancreatic splenosis is a benign condition which can mimic a pancreatic neoplasm. OBJECTIVE: To describe the role of the endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) of pancreatic nodules suspicious for pancreatic splenosis. METHOD: From 1997 to 2011, patients with pancreatic solid tumors suspicious for splenosis by computed tomography and/or magnetic resonance imaging were referred to EUS-FNA. Those cases with pancreatic splenosis confirmed by EUS-FNA or surgery were included. Endosonographic findings and clinicopathologic features were also analysed. RESULTS: A total of 2,060 patients with pancreatic solid tumors underwent EUS-FNA. Fourteen (0.6%) cases with pancreatic splenosis were found. After applying exclusion criteria, 11 patients were selected. Most patients were male (7), young (mean age: 42 years) and asymptomatic (8). Endoscopic ultrasound imaging alone suspected pancreatic splenosis in 6 cases, and neuroendocrine tumors in 5 cases. Pancreatic splenosis was found most commonly in the tail, was round, hypoechoic, with homogeneous pattern, regular borders, and with scintigraphy negative for somatostatin receptors. The average diameter of these nodules identified by endoscopic ultrasound was 2.15 cm. Microhistology obtained by EUS-FNA confirmed the diagnosis in 9/10 patients. CONCLUSION: Pancreatic splenosis can be diagnosed by EUS-FNA. Microhistology prevents unnecessary surgeries, and reassures asymptomatic patients with hypoechoic, homogeneous, and well circumscribed pancreatic nodules.

Assuntos

RESUMO

Context Pancreatic splenosis is a benign condition which can mimic a pancreatic neoplasm. Objective To describe the role of the endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) of pancreatic nodules suspicious for pancreatic splenosis. Method From 1997 to 2011, patients with pancreatic solid tumors suspicious for splenosis by computed tomography and/or magnetic resonance imaging were referred to EUS-FNA. Those cases with pancreatic splenosis confirmed by EUS-FNA or surgery were included. Endosonographic findings and clinicopathologic features were also analysed. Results A total of 2,060 patients with pancreatic solid tumors underwent EUS-FNA. Fourteen (0.6%) cases with pancreatic splenosis were found. After applying exclusion criteria, 11 patients were selected. Most patients were male (7), young (mean age: 42 years) and asymptomatic (8). Endoscopic ultrasound imaging alone suspected pancreatic splenosis in 6 cases, and neuroendocrine tumors in 5 cases. Pancreatic splenosis was found most commonly in the tail, was round, hypoechoic, with homogeneous pattern, regular borders, and with scintigraphy negative for somatostatin receptors. The average diameter of these nodules identified by endoscopic ultrasound was 2.15 cm. Microhistology obtained by EUS-FNA confirmed the diagnosis in 9/10 patients. Conclusion Pancreatic splenosis can be diagnosed by EUS-FNA. Microhistology prevents unnecessary surgeries, and reassures asymptomatic patients with hypoechoic, homogeneous, and well circumscribed pancreatic nodules. .

Contexto A esplenose pancreática é uma afecção benigna que pode mimetizar uma neoplasia pancreática. Objetivo Descrever o papel da ecoendoscopia associada à punção aspirativa com agulha fina ecoguiada (EE-PAAF) dos nódulos de pâncreas suspeitos de esplenose pancreática. Método De 1997 a 2011, pacientes com tumores sólidos de pâncreas sugestivos de esplenose pancreática, conforme achados de exames de imagem por tomografia computadorizada e/ou ressonância magnética foram encaminhados para EE-PAAF. Os casos com esplenose pancreática confirmada pela ecoendoscopia ou pela cirurgia foram incluídos. Os achados endossonográficos e os aspectos clinicopatológicos foram analisados. Resultados Dois mil e sessenta pacientes com tumores sólidos do pâncreas foram submetidos a EE-PAAF. Quatorze (0,6%) casos com esplenose pancreática foram encontrados. Após emprego dos critérios de exclusão, 11 pacientes foram selecionados. A maioria dos pacientes era do sexo masculino (7), jovens (idade média: 42 anos) e assintomáticos (8). A imagem ecoendoscópica isolada suspeitou de esplenose pancreática em 6 casos, e tumores neuroendócrinos em outros 5 casos. A esplenose pancreática foi detectada mais comumente na cauda do pâncreas, era redonda, hipoecogênica, com padrão homogêneo, bordos regulares bem delimitados e com cintilografia negativa para os receptores de somatostatina. O diâmetro médio dos nódulos foi de 2,15 cm. A microhistologia obtida pela EE-PAAF confirmou o diagnóstico em 9/10 pacientes. Conclusão A esplenose pancreática pode ser diagnosticada pela punção aspirativa com agulha fina ecoguiada. A microhistologia evita cirurgias desnecessárias ...

Assuntos

Assuntos

RESUMO

La esplenosis torácica se define como la presencia de implantes de tejido esplénico en la pleura parietal o visceral, secundaria a una rotura del bazo o traumatismo esplénico o diafragmático. Es una entidad rara, con síntomas poco específicos, que presenta un curso benigno. Entre las modalidades de imágenes para el diagnóstico se encuentran métodos convencionales, como el ultrasonido, la tomografía axial computarizada y la medicina nuclear, que son técnicas útiles para determinar tejido esplénico residual. En el artículo se presenta el caso de un hombre joven con antecedente de trauma esplénico, al cual se le diagnostica esplenosis torácica como parte del estudio de síndrome febril prolongado y síntomas respiratorios.

Assuntos

Assuntos

Assuntos

Assuntos

RESUMO

OBJECTIVE: To evaluate in a canine model the induction of tolerance to renal transplantation after splenectomy and splenosis. MATERIALS AND METHODS: This prospective, experimental, comparative, longitudinal study included 4 experimental groups, each comprising 4 dogs. Group 1 (control group) underwent renal transplantation only; group 2 underwent renal transplantation and splenectomy; group 3 underwent renal transplantation and splenosis; and group 4 underwent renal transplantation, splenectomy, and splenosis. Survival and degree of rejection were compared between the 4 groups. RESULTS: Splenosis improved renal function after transplantation, as indicated by increased serum creatinine concentration (group 3, 6.2 mg/dL vs group 1, 12.9 mg/dL). Comparison of weighted survival curves (corrected for degree of rejection) demonstrated a significant difference between group 2 (66.0 days) and group 4 (66.2 days) vs group 1 (52.7 days) and group 3 (41.2 days) (P = .05, Wilcoxon rank sum test). CONCLUSION: These results suggest that in this experimental model of renal transplantation, splenosis and splenectomy induce clinical tolerance, as indicated by improved renal function and prolonged recipient survival.

Assuntos

RESUMO

Ectopic splenic tissue results from the autotransplantation and seeding of splenic tissue, often secondary to splenic trauma or splenectomy. Splenic implantations occur mostly as nodules within the peritoneal cavity and constitute an incidental finding at necropsy, surgery, or imaging investigations. This report addresses a case of hemoperitoneum associated with hepatic splenosis in a dog that became ill several years after splenic trauma.(AU)

Assuntos

RESUMO

Ectopic splenic tissue results from the autotransplantation and seeding of splenic tissue, often secondary to splenic trauma or splenectomy. Splenic implantations occur mostly as nodules within the peritoneal cavity and constitute an incidental finding at necropsy, surgery, or imaging investigations. This report addresses a case of hemoperitoneum associated with hepatic splenosis in a dog that became ill several years after splenic trauma.

Assuntos