Female, 65 years old, with sarcoidosis. Evaluate for evidence of neurosarcoid. No evidence of restricted diffusion is seen. No parenchymal edema or mass effect is detected. Minimal scattered small foci of T2 hyperintensity within the cerebral hemispheres are unchanged. Cerebral leptomeningeal enhancement seen on the prior examination has resolved. Enhancement of the left optic chiasm, prechiasmatic optic nerves and optic tract, as well as of the hypothalamus and pituitary infundibulum, has diminished. No new enhancing lesions are seen.No evidence of acute or chronic intracranial hemorrhage is seen. No abnormal extra axial fluid collections are detected. The ventricular system is normal in size and morphology. Large mucus retention cysts remain within the maxillary sinuses.
Since the prior examination, cerebral leptomeningeal enhancement has resolved, and enhancement along the left optic apparatus, hypothalamus and pituitary infundibulum has diminished. Findings suggest at least a radiologic improvement in the appearance of neurosarcoid. No new lesions are seen.