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Related Concept Videos

The Parathyroid Glands00:59

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The endocrine system produces and secretes hormones, which interact with the skeletal system. These hormones control bone growth, maintain bone once it is formed, and remodel it.
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Related Experiment Video

Updated: May 21, 2025

Two Techniques to Create Hypoparathyroid Mice: Parathyroidectomy Using GFP Glands and Diphtheria-Toxin-Mediated Parathyroid Ablation
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Primary Hyperparathyroidism in MEN2 Syndromes.

Katerina Saltiki1, Maria Alevizaki2

  • 1Endocrine Unit, Department of Clinical Therapeutics, School of Medicine, Alexandra Hospital, National and Kapodistrian University of Athens, Athens, Greece. saze@otenet.gr.

Recent Results in Cancer Research. Fortschritte Der Krebsforschung. Progres Dans Les Recherches Sur Le Cancer
|March 19, 2025
PubMed
Summary
This summary is machine-generated.

Primary hyperparathyroidism (PHP) occurs in MEN2 syndromes, particularly with RET gene mutations. Screening for PHP is recommended in MEN2 patients, especially those with specific RET mutations.

Keywords:
HypercalcemiaHyperparathyroidismMEN2MEN2AMultiple endocrine neoplasiaPTHParathormoneParathyroidParathyroid hyperplasiaRET

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Area of Science:

  • Endocrinology
  • Genetics
  • Surgical Oncology

Background:

  • Primary hyperparathyroidism (PHP) is a recognized component of the Multiple Endocrine Neoplasia type 2 (MEN2) syndromes.
  • PHP prevalence in MEN2A is 20-30%, though potentially rarer in recent ret gene carrier recognition due to familial medullary thyroid carcinoma (MTC) focus.

Purpose of the Study:

  • To summarize the clinical presentation and management of PHP in MEN2 patients.
  • To highlight the genotype-phenotype correlation between RET gene mutations and PHP occurrence.
  • To emphasize the importance of screening MEN2 patients for PHP.

Main Methods:

  • Review of clinical manifestations and diagnostic criteria for PHP in MEN2.
  • Analysis of genotype-phenotype correlations, specifically focusing on RET gene mutations (e.g., exon 11, 634).
  • Discussion of diagnostic screening protocols and treatment strategies for PHP in MEN2.

Main Results:

  • PHP in MEN2 typically presents mildly, with diagnosis peaking after the third decade.
  • A phenotype/genotype correlation exists, with exon 11, 634 RET gene mutations frequently associated with PHP.
  • Parathyroid disease in MEN2 can involve multiglandular issues, hyperplasia, adenoma, or a combination.

Conclusions:

  • MEN2 patients require screening for PHP via serum calcium levels.
  • Screening intensity should be elevated for individuals with RET mutations strongly linked to PHP.
  • Surgical excision of enlarged parathyroid glands is the standard treatment for PHP in MEN2.