1983 Volume 25 Issue 12 Pages 1962-1967_1
In our hospital, 2 cases of primary duodenal cancer were experienced. One case was a 72-year-old man, who was pointed out to have a polyp of type IV of Yamada's classi-fication in the duodenal cap. The biopsy specimen was histologically diagnosed as adenoma. However, the patient wanted to have operation and gastrectomy was performed later. Histology of the resected specimen revealed tubular adenocarcinoma localized in the duodenal mucosal layer (m). The other case was a 54-year-old woman. She received upper GI series periodically, which showed an abnormal shadow in the duodenal bulb. Endoscopic examination and biopsy revealed a large polyp with slight atypism. The resected specimen revealed histologically early duodenal cancer (sm). Though endoscopic polypectomy is becoming popular, we had better perform opration for such a large polyp in the bulb over 2 cm in size.
