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A 25-year-old man had a seven-month history of repeated, unprovoked, sudden vomiting without accompanying headache or any other neurologic or gastrointestinal symptoms. Vomiting had occurred daily in the previous two months. The results of a neurologic and general examination were normal, and there was no papilledema. A contrast-enhanced T1-weighted sagittal magnetic resonance image of the brain showed an intensely enhancing mass in the inferior region of the fourth ventricle, with mild ventricular enlargement (arrow). Other images showed focal invasion of the brain stem with moderate edema. The mass — a choroid-plexus carcinoma — was removed surgically, and there were . . . [Full Text of this Article] |
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