Clinical question: History of pituitary cyst. Signs and symptoms: Surveillance scan. Pre-and post-enhanced pituitary MRI:Examination demonstrate a mass within the sella with solid and cystic components without significant change since prior exam. There is resultant enlargement of the sella similar to prior study. The solid component of mass demonstrate enhancement and there is no detectable enhancement of cystic portion of tumor. There is extension of tumor superiorly into the basal cistern and is in contact with the optic chiasm with resultant subtle elevation of the chiasm. This appearance is also similar to prior study. The pituitary stalk demonstrate normal caliber and terminates along the left paramedian dome of the pituitary mass similar to prior exam.Cavernous sinuses demonstrate normal signal intensity and pattern of enhancement.
1.Partially solid enhancing and partially cystic nonenhancing pituitary mass with resultant expansion of sella and extension into the basal cisterna with subtle elevation of chiasm remains stable since prior exam. No evidence of extension into the cavernous sinuses.