Contributed by Peter Christakos, MD and Ronald Hamilton, MD
Published on line in January 1999
The patient was a 4 year old girl with a 3 month history of headache, nausea, vomiting and staring spells. She presented with new onset ataxia and slurred speech.
MRI with contrast revealed a large enhancing mass in the third ventricle involving the left foramen of Monro, associated with dilated lateral ventricles, and white matter edema. (Images 01 and 02) The fourth ventricle was normal in size. No other cortical or ventricular abnormalities were seen.