Abel M E, Nelson R, Prasad M L, Pearl R K, Orsay C P, Abcarian H
Dis Colon Rectum. 1985 Nov;28(11):855-8. doi: 10.1007/BF02555492.
Congenital developmental cysts are the most common retrorectal tumors. Five adult patients, two men and three women, with congenital developmental cysts were operated on via a posterolateral approach through a parasacrococcygeal incision. All wounds healed primarily with no infection or other complications. Recurrent perianal infections and repeated anorectal operations suggest the possibility of retrorectal growths; thus diagnosis requires physician awareness. Computerized tomography is the best preoperative diagnostic test to delineate anatomy and to rule out bony involvement. Because of an infection rate of approximately 30 percent, as well as the presence of symptoms and malignancy in 8 percent of the patients, surgical excision is the treatment of choice. The authors use a posterolateral approach that provides excellent exposure and obviates the need for removal of the coccyx or transection of the sphincter muscle. The authors believe this to be the procedure of choice for excision of retrorectal cystic lesions.
先天性发育性囊肿是最常见的直肠后肿瘤。5例患有先天性发育性囊肿的成年患者（2例男性，3例女性）通过经骶尾旁切口的后外侧入路接受了手术。所有伤口均一期愈合，无感染或其他并发症。肛周反复感染和多次肛肠手术提示直肠后可能有肿物生长；因此，诊断需要医生提高警惕。计算机断层扫描是术前最好的诊断检查，可用于明确解剖结构并排除骨质受累情况。由于感染率约为30%，且8%的患者存在症状及恶性病变，手术切除是首选治疗方法。作者采用的后外侧入路可提供良好的视野，无需切除尾骨或横断括约肌。作者认为这是切除直肠后囊性病变的首选术式。
