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Hyperprolactinemia and associated pituitary prolactinomas.

S H Brenner, J B Lessing, J Quagliarello

    Obstetrics and Gynecology
    |May 1, 1985
    PubMed
    Summary
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    In hyperprolactinemic patients, computed tomography scans identified pituitary tumors in 44%. The likelihood of finding a pituitary tumor did not correlate with serum prolactin levels.

    Area of Science:

    • Endocrinology
    • Radiology
    • Oncology

    Background:

    • Hyperprolactinemia, characterized by elevated serum prolactin (PRL), is often associated with pituitary tumors.
    • Accurate diagnosis of pituitary adenomas is crucial for effective patient management.

    Purpose of the Study:

    • To investigate the association between serum prolactin levels and the presence of pituitary tumors in hyperprolactinemic patients.
    • To determine if serum prolactin levels correlate with the likelihood of detecting pituitary tumors via computed tomography (CT) scan.

    Main Methods:

    • Retrospective chart review of hyperprolactinemic patients (PRL ≥ 25 ng/mL) over a four-year period.
    • All identified patients underwent CT scan evaluation of the pituitary gland.
    • Statistical analysis to compare PRL levels between patients with and without pituitary tumors.

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    Main Results:

    • Hyperprolactinemia was confirmed in 79 patients.
    • Pituitary tumors were identified in 44% (35 of 79) of these patients.
    • No significant difference in mean PRL levels was observed between patients with and without pituitary tumors.

    Conclusions:

    • CT scan is a valuable tool for diagnosing prolactinomas in hyperprolactinemic patients.
    • The presence of a pituitary tumor in hyperprolactinemic patients does not correlate with the degree of hyperprolactinemia.
    • CT scan evaluation is recommended for all hyperprolactinemic patients irrespective of their serum prolactin concentration.