Clinical question: History of pituitary lesion. Evaluate for change. Signs and symptoms: None. Mild headaches. Surveillance imaging. Pre- and post enhanced pituitary MRI:Examination redemonstrate a round well-demarcated T1 hyperintense and T2 mixed signal, hypoenhancing lesion along the superior aspect of the pituitary gland measuring gas 7.7 x 8.4 mm on coronal T1-weighted series. The lesion bulges into the basal cistern however is not in contact and produces no mass effect on the suprasellar visual complex. The lesion measures identical to prior exam and is suggestive of a Rathke's cleft cyst. The rest of the pituitary gland demonstrate normal signal intensity and pattern of enhancement. Pituitary stalk demonstrate normal size and pattern of enhancement.Bilateral cavernous sinuses are well-visualized and unremarkable.
1.Stable well demarcated round hypoenhancing sellar mass suggestive of Rathke's cleft cyst.2.Unremarkable and stable pre and post enhanced MRI of the pituitary otherwise.