目的 研究生长于颅内罕见部位的表皮样囊肿病例并复习相关文献。方法 收集1例位于大脑前纵裂池的表皮样囊肿患者，研究患者的临床症状和体征、影像学表现、手术方案等资料，并查阅相关文献，归纳总结该类罕见病例的临床特征和诊治策略。结果 该例位于大脑前纵裂池的表皮样囊肿患者通过术前评估，经前纵裂入路，囊内容物完全切除，囊壁次全切除，无新发症状。结论 位于颅内罕见部位的表皮样囊肿存在术前诊断困难的问题，手术方案需根据不同部位采取不同入路，术后并发症的发生与常见部位的颅内表皮样囊肿并无明显区别。
Purpose Study the case of epidermoid cysts in rare parts of the brain and review related literature. Method A case of epidermoid cyst located in the anterior longitudinal fissure cistern of the brain was collected to study the clinical symptoms and signs, imaging, surgical strategy etc. Review relevant literature, summarize the clinical features, diagnosis and treatment strategies of such rare cases. Result This patient with an epidermoid cyst located in the anterior longitudinal fissure cistern of the brain passed the preoperative evaluation. Through the anterior longitudinal fissure approach, the contents of the cyst were completely removed, and the cyst wall was subtotal removed without new complications. Conclusion Epidermoid cysts located in rare intracranial sites had the problem of difficult preoperative diagnosis. The surgical strategy adopted different approaches according to different sites. The occurrence of postoperative complications was not significantly different from that of intracranial epidermoid cysts in common sites.