Macroprolactinaemiával társuló hypophysismacroadenoma kezelése quinagoliddal

Translated title of the contribution: Macroprolactinemia associated with pituitary macroadenoma: Treatment with quinagolide

Gergely Lakatos, Nikolette Szücs, Zoltán Kender, Sándor Czirják, Károly Rácz

Research output: Contribution to journalShort survey

5 Citations (Scopus)

Abstract

According to current concept, macroprolactin is biologically inactive and, therefore, its accumulation in serum has little, if any, pathological significance. Authors present the history of a 80-year-old man who proved to have, among other associated disorders, an intra- and parasellar pituitary tumor measuring 21×12×12 mm in size which was revealed by pituitary MRI. His hormonal evaluation indicated a marked hyperprolactinemia mainly due to macroprolactinemia (total prolactin, 514 ng/ml; reference range, 1.6-10.7 ng/ml; macroprolactin 436 ng/ml, monomer prolactin 78.2 ng/ml). Tests for function of the pituitary-thyroid axis showed a mild subclinical primary hypothyroidism. The function of the pituitary-adrenal axis was normal, and other hormonal tests revealed low-normal serum gonadotropins and decreased testosterone level, whereas serum insulin-like growth factor I was normal. Although the majority of current guidelines state that dopamine-agonist treatment which is successfully used in prolactin-producing pituitary tumors and in other hyperprolactinemic disorders is unnecessary in patients with macroprolactinemia, the authors introduced a dopamine-agonist, quinagolide. During prolonged treatment, plasma prolactin returned close to the upper limit of normal (12.3 ng/ml) and 9 months after the beginning of treatment pituitary MRI showed a remarkable shrinkage of the pituitary tumor. Authors propose that in this patient the pituitary tumor secreted macroprolactin, and they recommend a treatment trial with dopamine-agonist in pituitary macroadenomas associated with macroprolactinemia.

Original languageHungarian
Pages (from-to)1072-1075
Number of pages4
JournalOrvosi hetilap
Volume151
Issue number26
DOIs
Publication statusPublished - Jun 1 2010

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ASJC Scopus subject areas

  • Medicine(all)

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