el Quessar A, Chakir N, Bouyaakoub F, el Hassani M R, Jiddane M, Boukhrissi N
Service de Neuroradiologie, Hôpital des spécialités, Rabat, Maroc.
Ann Radiol (Paris). 1996;39(6):253-6.
Dermoid and epidermoid cysts are rare benign tumors arising from ectopic epiblastic inclusions. Dermoid cyst accounts for 0.4 to 1.5% of all tumors. We report the case of a 43-year-old man, who presented with a 6-month history of disturbances of balance and behavioral disorders. X-ray showed two fat-fluid levels in the ventricles. CT scan showed a left frontal mass with fat density, communicating with the left frontal horn. Histological examination after surgical excision confirmed the diagnosis of dermoid cyst. The diagnosis of ruptured intracranial dermoid cyst is based on the finding of an intraventricular and/or subarachnoid space fat-fluid level. MRI and CT scan facilitates the diagnosis of ruptured intracranial dermoid.
皮样囊肿和表皮样囊肿是由异位外胚层包涵物引起的罕见良性肿瘤。皮样囊肿占所有肿瘤的0.4%至1.5%。我们报告一例43岁男性病例，该患者有6个月的平衡障碍和行为紊乱病史。X线显示脑室内有两个脂肪-液平面。CT扫描显示左侧额叶有一脂肪密度肿块，与左侧额叶角相通。手术切除后的组织学检查证实为皮样囊肿。颅内破裂皮样囊肿的诊断基于脑室内和/或蛛网膜下腔脂肪-液平面的发现。MRI和CT扫描有助于颅内破裂皮样囊肿的诊断。
