Enlargement of a prolactin‐secreting pituitary microadenoma during bromocriptine treatment

Abstract
A patient with prolactin-secreting pituitary microadenoma was treated with bromocriptine, 5 mg daily for 1 yr. Despite normalization of prolactin levels throughout the treatment period, partial destruction of the sellar floor with growth of the adenoma into sphenoidal sinus were evident in a control tomography performed at the end of the treatment.