Choroid plexus papilloma

The choroid plexus is differentiated from specific ventricular neuroepithelium. Some authors believe that it is derived from ependymal cells of a certain ventricular wall, and its main function is to secrete cerebrospinal fluid. Choroid plexus papilloma can occur in the choroid plexus epithelium or glial cells of the ventricle wall. Most of them have the characteristics of secreting cerebrospinal fluid. They generally grow slowly and rarely cause malignant changes.