Granular cell tumors of the spinal canal: intramedullary case report and a review of the literature

Granular cell tumors (GCTs) are rare tumors that most commonly occur in the tongue, other areas of the head and neck, and the skin of the upper limbs and trunk. GCTs of the nervous system arise from peripheral nerves and the central nervous system (CNS), however only 11 cases have been reported in the spine (1-10). We here present the case of a 13-year-old girl with a GCT of the right C5 nerve root within the C4/5 foramen and review the published cases of spinal GCT.