ActaNeurochirurgica 59, 267--272 (1981) ACTA NEUROCH|RURGICA 9 by Springer-Verlag 1981 Department of Neurosurgery, University of Tokyo Hospital, Japan Anterior Sacral Meningocele Discovered by Whole Body Computerized Tomography Case Report By H. Takahashi, K. Kitamura, S. Tsubaki, K. Sano, and K. Takakura With 5 Figures Summary A case of anterior sacral meningocele which was clearly visualized on whole body computerized tomography is presented. Posterior surgical approach with ligation of the narrow communication between the sacral dural sac and the meningocele alleviated the subjective complaints of a feeling of abdominal distention and of dysuria. For the purpose of postoperative follow-up study, examination by whole body computerized tomography proved to be the best method of evaluating the size of the meningocele and also the state of neighbouring structures. Keywords: Anterior sacral meningocele; whole body computerized tomography. Introduction Anterior sacral meningocele is a rare congenital lesion which usually presents as a big intraperitoneal mass. Because of its rarity Thierry et al. 5 considered that all cases should be reported until a standard operative method of treatment is established. Recently, Wilkins and Odom 6 reviewed 125 reported cases. However, up to now, no reports concerning the role of computerized tomography in diagnosis and follow up have appeared, to our knowl- edge. It can be supposed that discovery of the anomaly may be improved by use of whole body computerized tomography. Case Report A 15-year-old boy was admitted to our hospital because of proctitis, a feeling of abdominal distention, and dysuria. These symptoms had been noted for about six months. Past history revealed nothing in particular except some constipation 0001-6268/81/0059/0267/$ 01.20