In 64% of the specimens, the marginal artery extends to the rectosigmoid arterial zone.
多数边缘动脉吻合到达乙状结肠直肠动脉（64％）。
In all intestinal stricture cases, partial ileal resection was performed in 14 patients, right hemicolectomy in 1 patient, rectosigmoid resection in 3 patients.
肠粘连狭窄患者1 4例行回肠部分切除术，1例行右半结肠切除术，3例行乙状结肠直肠上端切除术。
The number of mast cells in the ileocecal and rectosigmoid junctions increased with no statistical significance in patients with active and nonspecific colonitis.
活动性非特异性结肠炎的患者在回盲部和直肠乙状结肠交界部均可见到肥大细胞的轻度增加，但与正常对照组相比没有统计学意义。
Conclusions: In patients with UC, the lesions are mainly located at rectosigmoid colon and most of them are mild or moderate, extra-intestinal manifestations and complications are rare.
结论：我国UC患者的特点与国外报道存在一定的差异，主要表现是以直乙结肠炎为主，轻中度病变居多，肠外表现和并发症较少。
Conclusions: In patients with UC, the lesions are mainly located at rectosigmoid colon and most of them are mild or moderate, extra-intestinal manifestations and complications are rare.
结论：我国UC患者的特点与国外报道存在一定的差异，主要表现是以直乙结肠炎为主，轻中度病变居多，肠外表现和并发症较少。
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