T1 coronals pre-gad

Findings: Isointense mass in the posterior left orbit (a) with intracranial extension (b) to the prechiasmal region adjacent to the cavernous internal carotid artery (contralateral ica is noted). Meckels cave (Mec) containing the semilunar ganglion of the trigeminal nerve. Sphenoid sinus (ss). Vomer (vo) demarcating the posterior aspect of the nasal cavity (nc) as it becomes the nasopharynx (np). Right optic nerve (on).