Intraventricular neoplasms are rare and arise from periventricular structures such as the walls of the ventricular system, the septum pellucidum and the choroid plexus. Many tumor types arise from or can bulge into the ventricular system, although there are certain lesions that are relatively restricted to ventricles. A number of factors assist in defining the differential diagnosis, both radiological and clinical, including where the lesion is positioned within the ventricle as well as age and any associated conditions 4.
Neoplasms of the ventricular wall and septum pellucidum
Neoplasms of the choroid plexus
See: choroid plexus tumors.
Others
sarcoma
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