Sellar enlargement with hyperprolactinemia and a Rathke's pouch cyst
K. M. Trokoudes, P. G. Walfish, R. C. Holgate, K. P. Pritzker, M. L. Schwartz and K. Kovacs
A woman with secondary amenorrhea was found to have hyperprolactinemia
without clinical galactorrhea. Radiological findings of an enlarged sella
turcica with displacement of the pituitary stalk were considered consistent
with a prolactin macroadenoma. Treatment with bromocriptine corrected the
amenorrhea and hyperprolactinemia, and the patient inadvertently became
pregnant. However, no complications to the mother or fetus occurred during
pregnancy or postpartum. On transsphenoidal surgery three months
postpartum, the unexpected presence of a large Rathke's pouch cyst with a
microadenomatous or nodular hyperplasia type of prolactin-secreting tumor
was observed to account for the preoperative clinical and radiological
findings.
