| Series |
|
| Title |
Case of 0-IIa + IIc (NPG) submucosal invasive carcinoma 15 mm in diameter transformed from 0-Is minute polyp 3 mm in diameter over 7 years |
| Author |
Motomi Terasaki |
Department of Endoscopy, Hiroshima University |
| Author |
Shinji Tanaka |
Department of Endoscopy, Hiroshima University |
| Author |
Hiroyuki Kanao |
Department of Endoscopy, Hiroshima University |
| Author |
Shiro Oka |
Department of Endoscopy, Hiroshima University |
| Author |
Kazuaki Chayama |
Department of Gastroenterology and Metabolism, Hiroshima University |
| [ Summary ] |
A man in his sixties had been pointed out sessile PG type polyp in the sigmoid colon 3 mm in diameter in February 2005 and in February 2007. Due to the patient's personal circumstances, he had not been followed-up after the second observation. He had a colonoscopy for the examination of the cause of his left lower abdominal pain in June 2012 (7 years and 4 months after the first observation). Standard colonoscopy exhibited a NPG type 0-IIa + IIc submucosal invasive carcinoma 15 mm in diameter in the sigmoid colon. This was the same region where a 3 mm 0-Ⅰs polyp was detected 7 years previously. A laparoscopic assisted colectomy was performed. Histologic findings of the resected specimen revealed a NPG type moderately differentiated adenocarcinoma with deep submucosal invasion (2,600μm). This case is very interesting in terms of the morphological progression of colorectal cancer. |