Sarcoidosis [135], Reason for Study: ^Reason: re-evaluate osseous lesions seen on prior study, hx osseous sarcoid History: re-evaluate osseous lesions seen on prior study, hx osseous sarcoid Pituitary: Lesions replacing normal bone marrow signal intensity involving right side of the clivus, inferior to the sella, and right petrous apex, bilateral greater wings of the sphenoid, bilateral pterygoid processes of the sphenoid, right mandibular condyle and neck, as well as the partially imaged C1 and C2 vertebrae. These lesions show non homogeneous enhancement on Gad enhancement. Minimal enhancement around the dorsal aspect of the clivus indicating possible epidural extension.The pituitary gland and infundibulum are not enlarged and demonstrate normal enhancement characteristics. The optic apparatus is intact. Brain: There is no evidence of acute ischemic or hemorrhagic lesion. Mild nonspecific small vessel disease do not show any interval change since prior scan. The ventricles and basal cisterns are unchanged in size and configuration. There is no midline shift or herniation. There is a subcentimeter Thornwaldt cyst within the midline posterior nasopharynx, no change since prior scan.
1. No change of multifocal skull base including clivus, petrous apex, sphenoid greater wing, pterygoid process and right mandible lesions since prior scan.2. Normal pituitary gland.3. No evidence of acute ischemic or hemorrhagic lesion.4. No intracranial parenchymal abnormal signal intensity nor abnormal enhancement.