Sudden, unexpected death due to "pineal apoplexy".
A 20-year-old woman had a minute vascular malformation in the wall of a glial cyst of the pineal body. Bleeding into the cyst lumen caused rapid expansion of the pineal body, resulting in compression of the midbrain and her sudden, unexpected death.
D000328:Adult; D001808:Blood Vessels / Q000002:abnormalities; D001927:Brain Diseases / Q000150:complications / Q000473:pathology; D003251:Constriction, Pathologic; D003560:Cysts / Q000098:blood supply / Q000150:complications* / Q000473:pathology; D003645:Death, Sudden / Q000209:etiology*; D005260:Female; D006470:Hemorrhage / Q000209:etiology; D006801:Humans; D008636:Mesencephalon; D010870:Pineal Gland / Q000473:pathology