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Rev Gastroenterol Mex ; 76(4): 370-4, 2011.
Artigo em Espanhol | MEDLINE | ID: mdl-22188965

RESUMO

Non-functioning pancreatic neuroendocrine tumors (PNETs) are infrequent slow-growing, clinically-silent tumors. They are incidentally detected and some of them may present in advanced stages with local involvement of surrounding structures. The diagnostic accuracy of endoscopio ultrasound (EUS) and fine needle aspiration (FNA) biopsy is significantly lower in neuroendocrine tumors (46.7%) compared with adenocarcinoma (81.4%) and other histologies (75%). Therefore, preoperative diagnosis is very difficult. Exceptionally, hey present with gastrointestinal bleeding. We present a case of a non-functioning PNET initially diagnosed as cystic serous tumor of pancreas with EUS and FNA biopsy. Two years later patient presented obscure gastrointestinal bleeding due to duodenal infiltration. Diagnosis was made by capsule endoscopy.


Assuntos
Endoscopia por Cápsula , Neoplasias Duodenais/complicações , Hemorragia Gastrointestinal/diagnóstico , Hemorragia Gastrointestinal/etiologia , Neoplasias Pancreáticas/complicações , Feminino , Humanos , Pessoa de Meia-Idade , Invasividade Neoplásica , Neoplasias Pancreáticas/patologia
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