Cystic tumors occurring in the third ventricle of the brain, associated with the choroid plexus, are uncommon, and the literature contains but few references to them. Fulton and Bailey,1 in reviewing the subject in 1929, found less than twenty instances. From the clinical point of view, antemortem diagnosis is extremely difficult, and the process may be suspected only from certain peculiarities of symptoms, such as hypersomnia, visual disturbances accompanied by choking of the optic disks, a tendency to intermittency of attacks, and severe headaches, often associated with nausea and vomiting, from which the patient obtains sudden relief by a change in posture. Some of these symptoms, however, have been associated with tumors of the third ventricle, pineal body and posterior fossa. We wish to record a case of impaction of a cystic tumor in the third ventricle in which death occurred suddenly, owing to acute internal hydrocephalus.
Rinder CO, Cannon PR. IMPACTION OF A NEUROEPITHELIAL CYST IN THE THIRD VENTRICLE OF THE BRAIN. Arch NeurPsych. 1933;30(4):880-883. doi:10.1001/archneurpsyc.1933.02240160192011