“Brain of a White-Collar Worker”, Lionel Feuillet, Henry Dufour, Jean Pelletier2007-07-21 (; backlinks; similar)⁠:

[Very brief case study.]

On neuropsychological testing, he proved to have an intelligence quotient (IQ) of 75: his verbal IQ was 84, and his performance IQ 70.

CT showed severe dilatation of the lateral ventricles (figure); MRI revealed massive enlargement of the lateral, third, and fourth ventricles, a very thin cortical mantle and a posterior fossa cyst.

We diagnosed a non-communicating hydrocephalus…after a ventriculoperitoneal shunt was inserted, the findings on neurological examination became normal within a few weeks. The findings on neuropsychological testing and CT did not change.