2001 Volume 43 Issue 9 Pages 1842-1846
We reported herein a 68-year-old male with primary early duodenal malignant lymphoma. Endoscopic examination revealed a flat protruted lesion which was covered with thick whitish mucosa in the second portion of the duodenum. Although the endoscopic finding of this tumor had not changed, a repeated histological examination of endoscopic biopsy speciemens revealed malignant lymphoma. Partial duodenectomy was performed and the resected tumor was diagnosed as follicular lymphoma limited within the submucosa. This was the 4th report in Japan as primary early duodenal malignant lymphoma.