Fig. 1From: A case of planar-type GIST of the sigmoid colon showing diverticular structure with perforationMacroscopic finding of the resected sigmoid colon. a A diverticulum with perforation (arrow) was observed. b The cut sections of a were shown. The histological specimens in Figs. 2 and 3 were made from the section indicated by the arrowheadBack to article page