Abstract
A 76-year-old man who had been followed up for duodenal ulcer in this hospital since. An irregular depressed lesion (type IIc), measuring 0.5×0.5cm in diameter, at the second portion of the duodenum by Gastrointestinal endoscopy was incidentally found having. Histological examination of the biopsied specimen revealed well differentiated tubular adenocarcinoma. In the first place, an extirpation of the lymph node (No.6, 13a, 13b) was perfomed. Because of no metastasis to these lymph nodes with frozen section diagnosis, a partial resection of the duodenum was performed. The resected specimen showed type IIc early duodenal carcinoma of depressed type, measuring 0.5×0.5mm insize. Histologically, well differentiated tubular adenocarcinoma was limited to the mucosa without lymph node (No.6, 13a, 13b) metastasis. This case is the 29th case of early duodenal carcinoma with depressed type reported in the Japanese literature.
