| Theme |
Proceedings of 13th Annual Meeting on Colorectal IIc Lesions |
| Title |
Case of 25 mm IIc+IIa type colon cancer |
| Author |
Norihiro Hamamoto |
Second Department of Internal Medicine, Osaka Medical College |
| Author |
Ichiro Hirata |
Second Department of Internal Medicine, Osaka Medical College |
| Author |
Yosuke Abe |
Second Department of Internal Medicine, Osaka Medical College |
| Author |
Takashi Izumiya |
Second Department of Internal Medicine, Osaka Medical College |
| Author |
Shingo Yasumoto |
Second Department of Internal Medicine, Osaka Medical College |
| Author |
Ken-ichi Katsu |
Second Department of Internal Medicine, Osaka Medical College |
| [ Summary ] |
A fifty nine year old man was hospitalized in our hospital for treatment of a colon tumor. A subtle reddish area was observed in rectosigmoid colon with standard colonoscopy. After dye-spraying, the depressed area was clearly observed in this lesion. Submucosal invasive cancer was suspected because a slight elevation was seen in the depressed area. A magnifying colonoscopy revealed VI type pit patterns in the elevation. EUS showed the tumor echo reached up to the middle of third layer and submucosal massive invasion (sm2) was suspected. A laparoscopic colectomy was performed. Macroscopically, the lesion was 25X12 mm in size and classified as type IIc+IIa. Histological findings showed the tumor was a well differentiated adenocarcinoma with submucosal massive invasion (sm2 900 Micro m). |