Chiari malformation, abnormal increased growth. Pituitary: There is a non-enhancing, intrinsically T1 hyperintense lesion located between the adenohypophysis and neurohypophysis that measures up to 9 mm. The infundibulum is intact. The optic apparatus and cavernous sinuses are intact. The imaged portions of the brain parenchyma are unremarkable.Complete Spine: The cerebellar tonsils are not low-lying. The spinal cord displays normal signal and morphology. 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 a right sacral perineural cyst that measures up to 17 mm. There is no significant spinal canal stenosis. There is The paravertebral soft tissues are unremarkable.
1. Findings compatible with a subcentimeter Rathke cleft cyst.2. No evidence of Chiari malformations of spinal cord lesions.