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骶前脊膜膨出症较少见.由于位置隐蔽,早期不易被发现,至产生压迫或阻塞邻近器官,如便秘、难产或泌尿道的症状时才被发现.病例报告:6岁男孩.出生后患肛门闭锁,行胃肠道X线检查时发现直肠后有一肿块,只行肛门成形术后出院.近5个月来有进行性行走困难,活动明显减少,且有泌尿道感染及尿失禁.入院时神经系统检查除右下肢肌力减退外余为正常.足趾不能曲.针刺和位置觉正常.右膝反射减弱,右踝反射消失.导尿后在骨盆深处可扪及一个4×6cm质软,无压痛、能移动的肿块,估计是脊膜膨出.静脉肾盂摄影发现双侧输尿管及肾盂积水和膀胱增大.骨盆前后位摄片发现有典型的“弯刀征”.脊髓造影显示有骶前脊膜膨出,其蒂部位于第2及3骶椎间
Presacral meningitis is rare, due to hidden position, not easy to be found early, to produce oppression or obstruction of adjacent organs such as constipation, dystocia or urinary tract symptoms were found Case report: 6-year-old boy was born Posthumous anal atresia, gastrointestinal X-ray examination revealed a mass after the rectum, only after anoplasty discharged. Nearly 5 months to have progressive walking difficulties, activity was significantly reduced, and urinary tract infections and urinary incontinence. On admission, the nervous system examination except the right lower extremity muscle weakness outside the normal for more than normal toe can not bend acupuncture and position feel normal right knee reflex, right ankle reflex disappeared after catheterization in the pelvis palpable deep 4 × 6cm soft, no tenderness, can move the mass, it is estimated that the meningocele .Veual pelvis found bilateral ureteral and hydronephrosis and bladder increased pelvic anterior and posterior radiographs found typical “scimitar sign ”Myelography showed anterior presacral meningocele, the pedicle is located between the 2 and 3 sacral intervertebral space