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Case Report Normal Repetitive Pregnancies and Tumor Regression Induced by Low-Dose Bromocriptine in a Patient with Macroprolactinoma.
Hye Jung Choi, Jin Yong Park, Woo Seok Choi, Jong Gyu Song, Hee Young Kim, Ji A Seo, Sin Gon Kim, Nan Hee Kim, Kyung Mook Choi, Sei Hyun Baik, Dong Seop Choi
Endocrinology and Metabolism 2009;24(1):42-46
DOI: https://doi.org/10.3803/jkes.2009.24.1.42
Published online: March 1, 2009
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Department of Internal Medicine, Korea University College of Medicine, Korea.

Prolactin-secreting adenomas are the most common pituitary tumors. Menstrual disturbances and infertility are the main complaints in women with prolactinoma. Dopaminergic agonists such as bromocriptine are well-established treatments for prolactinoma when pregnancy is desired. Pregnancy-related outcomes in macroprolactinoma are worse than those in microprolactinoma. In addition, symptomatic tumor expansion during pregnancy occurs in 30% of women with macroprolactinoma. Therefore, when women with macroprolactinoma are planning a pregnancy, serum prolactin level should be normalized and the tumor volume significantly reduced. On the other hand, a spontaneous regression of macroprolactinoma can occur after pregnancy. We report a case of macroprolactinoma showing significant tumor regression during repeated pregnancies and low dose bromocriptine treatment, with a literature review.

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