A Case of Depressed Early Duodenal Cancer

Abstract

A 65-year-old man had been followed up in our hospital due to liver cirrhosis, meanwhile endoscopic examination revealed a minute depressed lesion at the descending portion of duodenum. Although the histological diagnosis from the biopsy specimen was adenoma, group III, we concluded it malignant tumor because of its depressed shape and irregular margin. Endoscopic mucosal resection (EMR) was performed and from pathological examination this lesion was diagnosed as well differentiated adenocarcinoma of the duodenum. There reported only 14 cases of depressed early duodenal cancer in Japan, and 4 out of 14 cases were treated by EMR successfully.