A CASE OF ADVANCED TRANSVERSE COLON CANCER 7MM IN DIAMETER RESEMBLING A SUBMUCOSAL TUMOR

Abstract

Cases of colorectal cancer resembling a submucosal tumor are rare and among them, tumors of less than 1 cm in diameter occur very rarely. We report on a case of advanced transverse colon cancer 7 mm in diameter resembling a submucosal tumor with reference to the tumor's clinicopathological features, development and progression. A woman in her 60's was referred to our hospital because of a positive fecal occult blood test. Colonoscopy showed a cancerous lesion resembling a submucosal tumor of the transverse colon. Laparoscopic right hemicolectomy with dissection of group 3 lymph node was performed. The histological diagnosis and pathological stage was moderately differentiated adenocarcinoma, 7×6mm in diameter, pSS, pN0(0/19), sP0, sH0, cM0, and fStage II.