This tumor forms from ependymal cells, and is a variation of an ependymoma. Ependymal cells are cells line the passageway in the brain where cerebral spinal fluid (CSF) is produced and stored. Ependymal tumors are classified as either supratentorial (in the cerebral hemispheres) or infratentorial (in the back of the brain). See "Ependymoma" for more information.

 
Characteristics

• Slow growing
• Usually located in the fourth and lateral ventricles
• More common in men than in women

 
Symptoms

• Headaches
• Nausea
• Loss of balance
• Sometimes no symptoms occur and tumor is detected incidentally

 
Treatment

 
Surgery will be performed when possible. Radiation therapy may be used if the tumor progresses or recurs. A shunt may be needed to treat hydrocephalus.