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| 骨盆直肠间隙 (位于盆侧壁筋膜和直肠筋膜之间，上界为腹膜，下界为盆膈,后界为直肠侧韧带。骨盆直肠间隙较宽大，充满疏松结缔组织。骨盆直肠间隙脓肿多由肛腺脓肿或坐骨直肠窝脓肿向上穿经肛提肌进入该间隙引起) | |||
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