Colloid cysts of the third ventricle.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001927:Brain Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging*; D001932:Brain Neoplasms / Q000000981:diagnostic imaging; D002533:Cerebral Angiography; D014695:Cerebral Ventriculography; D002648:Child; D003560:Cysts / Q000175:diagnosis / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D006849:Hydrocephalus / Q000209:etiology; D007427:Intracranial Pressure; D008297:Male; D008875:Middle Aged; D009461:Neurologic Manifestations; D011011:Pneumoencephalography; D011877:Radionuclide Imaging