Fig. 2From: Spontaneous regression of transverse colon cancer with high-frequency microsatellite instability: a case report and literature reviewThe resected specimen reveals a 10-mm ulcer with plicate concentration, which has an 8.5-mm-sized polypoid lesion in the center (a). Histological examination shows marked nonspecific granulated tissue where the epithelium sloughed and fibrillization under the mucous membrane (b). No cancer cells were found in the scar tissue (c, d)Back to article page