直肠后间隙(又称骶前间隙)是骶骨前筋膜与直肠后壁固有筋膜之间一潜在的间隙。其内有多种组织结构,这些组织结构均可发生肿瘤,但临床上较少见。我院1986～1996年收治14例,均经手术和病理证实。1　临床资料1.1　一般情况　男4例,女10例;年龄7.5～50岁,平均30岁,其中21～41岁10例 The posterior rectal space (also known as the presacral space) is a potential gap between the presacral fascia and the intrinsic fascia of the posterior rectal wall. There are a variety of tissue structures within these tissues. Tumors may occur in these tissue structures but are rare in clinical practice. In our hospital from 1986 to 1996, 14 cases were treated and confirmed by surgery and pathology. 1 clinical data 1.1 general situation 4 males and 10 females; aged 7.5 to 50 years, an average of 30 years old, including 21 to 41 years old 10 cases