In these cases, a standard colonoscope also could not be adanced beyond the bend at the hepatic flexure because of a redundant colon in one case and pain in the other case.

• 在这两例病人中，标准的结肠镜检查也不能跨过肝曲，其中一例是因为结肠冗长，另一例则是因为疼痛。