 There is a 6 mm diameter T1 hyperintense lesion with fluid signal intensity on T2-weighted images with central low signal intracystic nodule in the left pituitary. There is an additional punctate T1 hyperintense focus in the pituitary gland anterior to the usual location of the posterior pituitary bright spot. There is compression of the adjacent pituitary gland. The pituitary stalk lies in the midline. The suprasellar cistern, optic chiasm, cavernous sinuses, and intracranial portions of the optic nerves appear unremarkable.
A 6 mm lesion in the left pituitary has features highly suggestive Rathke's cleft cyst. An additional punctate T1 hyperintense focus in the pituitary gland anterior to the usual location of the posterior pituitary bright spot may represent another Rathke's cleft cyst.I personally reviewed the Images and/or procedure with the Resident/Fellow and agree with this report.