One-stage Combined Approach to “Dumbbell” Neurogenic Tumor

Abstract

Mediastinal “dumbbell” tumors are constricted at the point they penetrate the intervertebral foramina or dura mater andassume an hourglass shape. Nowadays, the term is used as a conceptual term meaning separate tumors that connect andhave two or more separate regions such as intradural space, epidural space, and mediastinum. Because of their variedlocations, dumbbell tumors have variable features, clinical symptoms, and pathological characteristics different from commonspinal tumors, and therefore, their surgical treatment is also different. A 51-year-old female presented with ambiguousnumbness on her right lower back. Clinical studies revealed a large mediastinal mass in the posterior mediastinum whichpenetrated the vertebral foramen of the eleventh thoracic vertebra and was composed of dumbbell tumor. We completelyexcised the tumor through one-stage combined approach by thoracic surgery and neurosurgery.