SYMPTOMATIC SALIVARY-REST CYST OF THE SELLA TURCICA

Although ectopic salivary tissue in the posterior pituitary is frequen tly observed in microscopic examination at autopsy, this tissue is con sidered clinically insignificant. The authors report a case of sella t urcica mass causing progressive menstrual irregularities and mild hype rprolactinemia in a 22-year-old woman. Magnetic resonance imaging reve aled a 1.2 X 0.9 cm non-enhancing mass of the postero-inferior sella t urcica. The lesion was isointense to brain on T1-weighted images and h ypo- to iso-intense on T2-weighted images. Transsphenoidal exploration revealed that the cyst wall consisted entirely of normal appearing sa livary gland. The clinical, radiographic, and pathologic features of t his unique entity are discussed.