Approximately 9.8% of neurogenic tumors of the mediastinum extend into the spinal column so that the composite neoplastic mass was dumbbell shaped. We experienced three patients confirmed by Dumbbell shaped mediastinal tumor radiologically and tried surgical resection by posterolateral thoracotomy only corpectomy and costotransversectomy was performed simultaneously in three patients and interbody fusion in two. In one patient the diagnosis was liposarcoma and in 1 neuroblastoma and in 1 neurilemmoma. then followed by radiation theraphy in case I and radiation and chemotheraphy in case II. All three cases showed satisfactory results clinically and radiographically.