Abstract: A 27-year-old male with left temporal protrusion from childhood presented with complaints of headache, nausea and vomiting. Cranial magnetic resonance imaging (MRI) showed fluid collection measuring 6.00 cm × 7.00 cm × 8.00 cm in left temporal fossa. The diagnosis of epidermoid cyst of brain was made and surgical resection of the tumor was done. Epidermoid cysts of brain grow slowly and are composed of epidermoid cells debris rich in cholesterol. The prophylactic removal of these tumors with goal of preventing recurrence is recommended. 

Key words: Epidermal cyst, Tomography, X-ray computed, Magnetic resonance imaging, Central nervous system cysts, Case reports

摘要： 男性患者，27 岁。主因头痛、恶心、呕吐入院。患者幼时即左侧颞叶突起。MRI 检查显示左侧颞窝囊性病变，约为6.00 cm × 7.00 cm × 8.00 cm 大小。临床诊断为表皮样囊肿，予手术切除。表皮样囊肿生长缓慢，由富含胆固醇的表皮样细胞碎片组成，发生后应施行预防性切除。

关键词: 表皮囊肿, 体层摄影术, X线计算机, 磁共振成像, 中枢神经系统囊肿, 病例报告