• Annals of hematology · Mar 2005

    Letter Case Reports

    Complete remission of hyperprolactinemia and erythrocytosis after hysterectomy for a uterine fibroid in a woman with a previous diagnosis of prolactin-secreting pituitary microadenoma.

    • Vincenzo Cordiano.
    • Ann. Hematol. 2005 Mar 1; 84 (3): 200-2.

    AbstractA 44-year-old woman who had been suffering for 10 years from amenorrhea and hyperprolactinemia resistant to high doses of bromocriptine was hospitalized with erythrocytosis, normal serum erythropoietin (sEpo) levels, and hypertension. Erythrocytosis secondary to uterine myoma and a prolactin-secreting pituitary microadenoma were initially diagnosed. The hyperprolactinemia was bromocriptine resistant, despite gradual increase of the dosage to 30 mg/day. Both hyperprolactinemia and erythrocytosis unexpectedly regressed completely after the patient underwent hysterectomy for a uterine fibroid 9 months after the erythrocytosis was first disclosed. Given the well-known effects of prolactin on hematopoietic cells, we hypothesize that--in this very unusual case--the two main, apparently unrelated abnormalities (erythrocytosis with normal sEpo levels and hyperprolactinemia) may have been the clinical consequence of the functional redundancy and pleiotropy of the "pituitary" hormone prolactin, inappropriately secreted by a uterine fibroid for more than 10 years.

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