A Case Report of early Gastric Cancer(Type IIa) Derived from a Hyperplastic Polyp during one Eear.

概要

論文の詳細を見る
A 54-year-old male was endoscopically diagnosed with a peduncu.lated hyperplasticpolyp, about 10mm in size, in the greater curvature of the lower gastric body. Theendoscopic examination following year revealed a IIa-like lesion, about 12mm in size, atthe same place. The histological exarnination of the biopsy specimen disclosed welldifferentiated tubular adenocarcinoma, and endoscopic mucosal resection was performed.Macroscopically, no tumor was observed on the cut edge. Microscopically, cancerremained within the mucosa, and most of the lesion was occupied by carcinomatouscomponent but hyperplastic lesion remained peripherally. The early gastric cancer(type IIa) was thought to be derived from the hyperplastic polyp, because of the followingreasons: 1) they were located just in the same place of the stomach metachronously, 2) there was no other polypoid lesions, and 3)hyperplastic change around carcinomatouscomponent v as partially observed.
社団法人日本消化器内視鏡学会の論文