Flat depressed early colon cancer--a case report.
A flat depressed early colon cancer (FDEC) is characterized by non-polypoid growth pattern, no association of adenomatous tissues and a tendency of even small lesions toward submucosal invasion and lymph node metastasis. It supports de novo carcinogenesis of colorectal cancer, although most colorectal cancers arise in pre-existing adenoma (adenoma-carcinoma sequence). There have been few reports of small depressed cancers because of the difficulty in colonoscopic detection and the rapid development to ulcerating advanced cancers. We report a case of flat depressed early colon cancer confined to mucosa detected by indigo carmine contrast colonoscopy.
Han
D
D
College of Medicine, Hanyang University Kun Hospital, Kyunggi-do, Korea.
Sohn
J H
JH
Cho
Y J
YJ
Jeon
Y C
YC
Kim
H J
HJ
Park
K N
KN
Chang
S J
SJ
D003110:Colonic Neoplasms / Q000473:pathology* / Q000503:physiopathology; D003113:Colonoscopy; D006801:Humans; D008297:Male; D008875:Middle Aged