Periampullary Carcinoma: Unusual Sites of Metastasis

摘要

Background:Periampullary neoplasms include carcinomas of the duodenum, ampulla of Vater, distal common bile duct, and pancreas. The aggressive course of these neoplasms is attributable to the delay in diagnosis, as patients have no symptoms until advanced stages of the disease. More than half of patients have distant metastasis at the time of diagnosis. The most frequent sites of metastasis are the liver, lymph nodes, peritoneum, lung, bone, kidney, and, rarely the skin.