Chiari decompression: headache and adrenal insufficiency. Brain: There are postoperative findings related to Chiari decompression, with an unchanged configuration of the cerebellum, which remains low-lying. There appears to be partly impeded flow of cerebrospinal fluid across the neo-foramen magnum, both anteriorly and posteriorly. There is increased patchy T2 hyperintensity in the pons. There is no evidence of intracranial hemorrhage, mass, or acute infarct. The ventricles and basal cisterns are unchanged in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits are grossly unremarkable. There are small bilateral ethmoid sinus retention cysts.Pituitary: There is unchanged appearance of the pituitary gland, which measures up to 10 mm in height. The infundibulum is intact and there is no mass effect upon the optic apparatus or cavernous sinuses.Cervical Spine: The vertebral column alignment is within normal limits. The vertebral body and disc space heights are preserved. The vertebral bone marrow signal is unremarkable. There is no significant spinal canal stenosis. The spinal cord displays normal signal and morphology.
1. Postoperative findings related to Chiari decompression, with an unchanged configuration of the cerebellum and apparent partly impeded flow of cerebrospinal fluid across the neo-foramen magnum. 2. Increased nonspecific patchy T2 hyperintensity in the pons. 3. Unchanged appearance of the pituitary gland, which measures up to 10 mm in height. 4. No evidence of syringomyelia.