Moderate hydrocephalus is present, associated with transependymal flow.
The left globe has been enucleated. A small focus of hypointensity is evident in the right globe, which likely represents calcification. In this case, the associated findings of previous retinoblastoma on the left and small calcified tumor on the right would lead to a diagnosis of pineoblastoma. Retinoblastoma is the most common primary intraocular tumor of childhood, and should be a primary consideration in the differential diagnosis of leukocoria. Invasion of the optic nerve portends a poor prognosis.