Case of the month. April 1996--pituitary tumor

Brain Pathology
L Kohler

Abstract

A 20 year old man presented with intermittent diplopia and difficulty focusing his leftward gaze during the past month. His past medical history was only significant for a dermoid cyst in the posterior fossa which was removed at age 10. MRI scans demonstrated a perisellar mass, eroding the sphenoid and surrounding the right carotid artery as well as extending into the sella. A transsphenoidal endoscopic resection was performed. The tumor was diagnosed as a germinoma (seminoma). Most germinomas in the brain arise in the pineal, however, germ cell neoplasms (including teratomas, germinomas and non-germinomatous germ cell neoplasms) are not unknown in the perisellar region and typically arise in the hypothalamic region and present with diabetes insipidus, visual disturbances or hypopituitism.

Citations

Jul 15, 2003·Pathology Oncology Research : POR·D J HalbauerEva Gömöri

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