Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Lateral sacral meningocele presenting as a gluteal mass: a case report | Seddighi and Seddighi Journal of Medical Case Reports 2010 4 81 http content 4 1 81 JOURNALOF medical ÌỤr case REPORTS CASE REPORT Open Access Lateral sacral meningocele presenting as a gluteal mass a case report Afsoun Seddighi1 Amir Saied Seddighi2 Abstract Introduction Lateral meningocele is a very rare disorder. It has been reported in patients with neurofibromatosis or Marfan s syndrome. Previous reports have described lateral meningoceles in the thoracic or cervical region. Lateral meningocele in the sacral area was reported in the literature only once. Case presentation We describe a Iranian girl who presented with a lateral gluteal mass. Neuroimaging and intra-operative evaluation showed that the mass was a lateral sacral meningocele with spinal communication through the iliac bone. We also present a review of the literature about this entity. Conclusions Although lateral meningoceles especially in the sacral region are rare disorders their possibility should always be considered in young patients presenting with a paravertebral or gluteal mass. Introduction A meningocele is an outpouching of leptomeninges through a developmental defect in the dura. The arches of the vertebrae at one or more levels are involved with protruded meningeal sac covered with only a layer of skin 1 . Lateral meningoceles are extensions of the dura and arachnoid through an enlarged neural foramen. These often occur in the setting of Marfan syndrome or neurofibromatosis type 1 but may also be seen as isolated anomalies. Although they occur in the thoracic or sometimes in the cervical region localization at the sacral spine is very infrequent 2 . Case presentation We present the case of a Iranian girl who was referred to us from pediatric surgery clinic because of a gluteal mass. Her parents informed us that the swelling of the right buttock of their daughter had been present since her birth. The size of the mass had been .