The patient, a 68 year old female, had a history of diabetes, chronic nephritis and Parkinsonism. She presented with instability of her diabetes following a 7 day history of vomiting. She was hypertensive, had absent reflexes and bilateral Babinski responses. Over 3 days she deteriorated and died.
The specimen is of cerebrum sliced coronally to show the region of the basal ganglia. Arising from the floor of the left lateral ventricle is a small 6mm in diameter solid-looking tumour. The upper anterior part of the left putamen, globus pallidus and caudate nucleus are wasted and the adjacent lateral ventricle is dilated.
Histologically the tumour was a well differentiated astrocytoma.