Surgical decompression of the cerebellar mass showed a malignant ependymoma. Hydrocephalus is recognized ... but rarely can occur at the foramen of Monro, the third ventricle, or the outlet of the ...

A 42-year-old man has undergone complete resection of a supratentorial tanycytic ependymoma, with no evidence of residual disease. The tumor was adjacent to the left lateral ventricle.