Rosette-Forming Glioneuronal Tumor of Spinal Cord.

Rosette-forming glioneuronal tumor has recently been included in the World Health Organization classification as a low-grade tumor. It usually occurs in young adults, arising from the fourth ventricular region. The authors describe a rare case of rosette-forming glioneuronal tumor arising from the spinal cord with cerebrospinal fluid dissemination. Magnetic resonance imaging showed a cervical spinal cord tumor, which could be easily misdiagnosed as ependyma or astrocytoma. Surgical total resection was performed, and histopathologic examination made the diagnosis, showing a biphasic neurocytic and glial tumor with neurocytic rosettes. Six months after surgery, the patient had fully recovered.