Aneurysm in the third ventricle.
D000783:Aneurysm; D002552:Cerebral Ventricles; D006801:Humans; D006849:Hydrocephalus / Q000209:etiology*; D002532:Intracranial Aneurysm; D020542:Third Ventricle
CEREBRAL VENTRICLES/aneurysm; HYDROCEPHALUS/etiology and pathogenesis