Hepatoid Carcinoma of the Pancreas Presenting as Acute Pancreatitis / 대한내과학회지

ABSTRACT

Hepatoid carcinoma is extrahepatic neoplasm showing similar morphologic, immunohistochemical features with hepatocellular carcinoma. It's a very rare disease and has been reported most frequently in the stomach. Herein, we report a case of hepatoid carcinoma of pancreas presented with acute pancreatitis. The hepatoid carcinoma was diagnosed by his needle biopsy specimen and it showed pleomorphic nuclei and predominantly eosinophilic and occasionally clear cytoplasm in hematoxylin and eosin staining, and positive for HepPar-1 and cytokeratin 19 in immunohistochemical staining. Surgical treatment seems to be the best choice, if possible. However, there is no standard regimen for palliative chemotherapy. In our case, the patient was treated with 5-Fluorouracil (5-FU), folinic acid, irinotecan, oxaliplatin (FOLFIRINOX). The response was stable disease up to 4 month of follow up.