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Epidemiology and Management Challenges in Prolactinomas.

Laurent Vroonen1, Adrian F Daly1, Albert Beckers2

  • 1Department of Endocrinology, Centre Hospitalier Universitaire de Liège, Liège Université, Liège, Belgium.

Neuroendocrinology
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Prolactinomas, the most common pituitary tumors, often affect women but can be resistant to standard treatment. Research is exploring factors influencing resistance and challenges in specific patient groups.

Keywords:
Dopamine agonistEpidemiologyGeneticsPediatricsProlactinomaResistance

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Area of Science:

  • Endocrinology
  • Oncology

Background:

  • Pituitary adenomas affect 1 in 1,000 people; prolactinomas are the most common subtype.
  • Prolactinomas typically impact premenopausal women, causing menstrual issues and galactorrhea.
  • Dopamine agonists are the primary treatment, managing symptoms and tumor size.

Purpose of the Study:

  • To review factors contributing to dopamine agonist resistance in prolactinomas.
  • To discuss management challenges in specific populations like pediatric and pregnant patients.
  • To highlight unexplained aspects of prolactinoma biology and sex prevalence differences.

Main Methods:

  • Literature review of recent studies on prolactinoma management and resistance.
  • Analysis of factors associated with treatment resistance.
  • Examination of clinical presentations and challenges in diverse patient groups.

Main Results:

  • Dopamine agonist resistance is linked to male sex, genetic factors, and aggressive tumor behavior.
  • Pediatric and pregnant patients present unique management challenges.
  • Dopamine agonist treatment is generally safe, with rare cardiac or impulse control side effects.

Conclusions:

  • Understanding resistance mechanisms is crucial for optimizing prolactinoma treatment.
  • Further research is needed to explain sex-based prevalence differences and resistance mechanisms.
  • Personalized treatment strategies may be required for challenging prolactinoma cases.