Marianna Univ. Yokohama-city Seibu Hopsital, St. Marianna JQ1 Univ. Yokohama-City Seibu Hopsital Objective: Several cases of sporadic cancer, not colitic cancer in the patients with ulcerative colitis were reported. Differential diagnosis is critical, because the first-line therapy is different. Methods: Case: A 47 y/o female was referred to our hospital, after ulcerative colitis was confirmed pathologically. 5-ASA, steroid enema and azathioprine was given, however, the remission stage could not be obtained. On colonoscopy, multiple

inflammatory polyps were seen in the entire colon. A sessile polypoid lesion sized as 5 mm in diameter, surrounded by the inflammatory mucosa, was seen in the hepatic flexure, and biopsy specimen showed adenocarcinoma. Magnifying images with NBI and indigocarmine stain showed IV with partial VI type pit pattern. After obtained fully informed consent, endoscopic mucosal resection (EMR) underwent. Results: Pathological result was as follows: Tubular adenocarcinoma, tub1, pM, Intestinal type; INFb. Alectinib nmr ly0, v0, horizontal margin:-, vertical margin:-. Immunohistological result with p53 and Ki-67 presented that the neoplastic area was seen only on the top of the lesion without any dysplasia in the adjacent area. (“top-down” type) Discussion: It is difficult to distinguish colitic from sporadic cancer only in the endoscopic

images, therefore, histological confirmation is critical. We firstly diagnosed colitic cancer, because the extension of the lesion was entire colon type and the morbidity history was more than 10 years. However, the final result was sporadic cancer with ulcerative colitis. Conclusion: A case report of sporadic early colon cancer in the patient with ulcerative colitis was presented, difficult to differentiate from colitic cancer endoscopically. More cumulative case reports would be mandatory. Key Word(s): 1. colitic cancer; 2. sporadic cancer; 3. ulcerative colitis Presenting Author: HIROKI TANAKA Additional Authors: MAKI MIYAKAWA, RYOSUKE SAKEMI, MASANAO NASUNO, SATOSHI MOTOYA, AKIMICHI IMAMURA

Corresponding Author: HIROKI TANAKA Affiliations: Sapporo Kosei General Hospital, Sapporo Kosei General Hospital, Sapporo Kosei General Hospital, Sapporo Kosei General Hospital, Sapporo Kosei General Hospital Objective: Very check details few studies have reported on Japanese patients with CD who received adalimumab maintenance treatment. We evaluated the effectiveness of adalimumab as a maintenance treatment in patients with CD and the prognostic factors related to the treatment results. Methods: We investigated all patients who were treated with adalimumab for luminal CD between October 2010 and March 2013. The effectiveness of adalimumab maintenance treatment was evaluated using the sustained treatment success rates, which were estimated using the Kaplan–Meier method. Sustained treatment success was defined as a lack of treatment failure.