Congenital or acquired cysts of the brain, spinal cord, or meninges which may remain stable in size or undergo progressive enlargement.

Synonyms: Cysts, Rathke Cleft, Cleft Cyst, Rathke, Cleft Cyst, Rathke's, Rathke's Cleft Cysts, Central Nervous System Cysts, Rathke's Cleft Cyst, Cysts, Central Nervous System, Suprasellar Cyst, CNS Cysts, Cyst, Suprasellar, Cyst, CNS, Cyst, Rathke Cleft, Rathkes Cleft Cyst, Rathke Cleft Cysts, Rathke Cleft Cyst, CNS Cyst, Cleft Cysts, Rathke's, Cyst, Rathke's Cleft, Cysts, CNS, Rathkes Cleft Cysts, Cysts, Suprasellar, Suprasellar Cysts