大型颅－鼻－眶沟通瘤１例，颅内肿瘤经双额开颅切除，累及双侧鼻腔和左眶内的肿瘤，应用内窥镜经鼻－筛窦入路切除，再行颅内、外双重颅底修补重建术，手术一次完成，无任何并发症。随访两月，恢复良好。１　临床资料１．１　病例简介　患者，男，２７岁。左侧反复鼻出血１年 Large cranial-nasal-condylar communicating tumor in 1 case. The intracranial tumor was resectioned by double frontal craniotomy and involving bilateral nasal and left orbital tumors. Endoscopic resection through the nasal-ethmoid sinus approach followed by intracranial surgery. The external double skull base was repaired and reconstructed. The operation was completed once without any complications. Followed up for two months and recovered well. 1 Clinical data 1.1 Case Introduction Patients, male, 27 years old. Repeated nosebleed on the left for 1 year