A resected case of pancreas adenosquamous carcinoma derived from mucin-producing cystic tumor, revealed by colonic ileus

Abstract

A 78 year-old woman was referred to our hospital for vomiting and abdominal pain. There was a colonic obstruction beside the 8cm-sized cystic mass in the pancreas tail. After reducing the colonic pressure via the anus, we resected the distal pancreas, spleen, part of the colon and stomach, and left adrenal gland. The cystic wall was covered with the adenoma and carcinoma in situ. Carcinoma in situ developed to adenocarcinoma, and then to adenosquamous carcinoma. The diagnosis was pancreas adenosquamous carcinoma, derived from a mucin-producing cystic pancreas neoplasm. It is very rare that pancreas carcinoma is revealed by colonic ileus and mucin-producing pancreas cystic neoplasm leads to pancreas adenosquamous carcinoma. After 5 and a half months from the operation the patient died from cancer recurrence.