Abstract
Large-cell neuroendocrine carcinoma (LCNEC) in the distal bile duct is very rare and different from common distal bile duct adenocarcinoma. A 77-year-old man was admitted with obstructive jaundice. Severe stenosis of the distal bile duct was revealed by percutaneous transhepatic cholangiography. Subtotal stomach-preserving pancreaticoduodenectomy was performed. A tumor measuring 1.8cm in diameter was located in the distal bile duct. Both histopathological and immunohistochemical examination of the resected specimen revealed features of LCNEC of the bile duct. The patient developed multiple liver metastases, lung metastases, and local recurrence and died of disease 3months after the operation. The clinical behavior of LCNEC in the distal bile duct appears to be highly aggressive with early metastases and a fatal outcome.
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