Histology
The sections show a lesion comprising skin, sebaceous glands, fat, calcification and cartilage. Amorphous and keratinous debris with hair shafts are identified. Adjacent cerebral cortex is present with attached cyst lining, associated with reactive gliosis. No immature elements are noted. There is no evidence of malignancy.
FINAL DIAGNOSIS: Suprasellar lesion: Mature teratoma.