Adenoid cystic carcinoma of the right pterygopalatine fossa with right V 2 numbness. Pituitary: The pituitary gland is normal in size and displays normal signal and enhancement characteristics. There is no evidence of mass lesions within the pituitary gland or elsewhere in the sella. The optic apparatus is intact. However, there is enhancing tumor within the right cavernous sinus extending from the right foramen rotundum and pterygopalatine fossa. Brain: There is no evidence of intracranial hemorrhage or acute cerebral infarct. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits are grossly unremarkable.
1. No evidence of pituitary gland lesions.2. Perineural tumor spread along the second division of the right trigeminal nerve into the cavernous sinus.