Colonoscopic views of less severe UC are seen below, with friable, erythematous mucosa with reduced haustral folds. 可见到并不严重的溃疡性结肠炎的结肠镜检图，易碎的红斑粘膜，伴结肠带减少。
This patient had severe ulcerative, friable atheromatous plaques and had undergone angiography, which increases the risk for such emboli. 该病人有严重的溃疡形成，易碎的粥样斑块，同时也做了会增加血栓形成危险的血管造影术。
