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Hereditary medullary thyroid carcinoma

H F Vasen1, A Vermey

  • 1Foundation for the Detection of Hereditary Tumors, Utrecht, The Netherlands.

Cancer Detection and Prevention
|January 1, 1995
PubMed
Summary
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Early screening for hereditary medullary thyroid carcinoma (MTC) and related multiple endocrine neoplasia (MEN) syndromes is crucial. Genetic testing and serum calcitonin measurements enable early diagnosis and curative surgical treatment, improving patient outcomes.

Area of Science:

  • Endocrinology
  • Oncology
  • Genetics

Background:

  • Hereditary medullary thyroid carcinoma (MTC) is a significant familial cancer.
  • MTC is associated with pheochromocytoma and hyperparathyroidism (MEN 2A) or mucosal neuromas (MEN 2B).
  • Clinical presentation of MTC can lead to high mortality and morbidity.

Purpose of the Study:

  • To highlight the importance of early diagnosis and screening for hereditary MTC and MEN syndromes.
  • To outline diagnostic methods and recommended screening protocols.
  • To discuss the role of genetic testing and surgical management.

Main Methods:

  • Serum calcitonin measurement with pentagastrin/calcium stimulation for MTC diagnosis.
  • Genetic screening using linked markers for MEN 2A gene carriers.

Related Experiment Videos

  • Phenotypic screening for MEN 2B syndrome in infants.

    • Main Results:

    • Early diagnosis through screening allows for potentially curative thyroidectomy and/or adrenalectomy.
    • Genetic screening offers 95% accuracy in informative families for MEN 2A.
    • Screening protocols vary by syndrome type, starting from infancy for MEN 2B.

    Conclusions:

    • Screening family members of MTC patients is vital for early detection and treatment.
    • Genetic testing provides a powerful tool for identifying at-risk individuals.
    • Surgical intervention is the primary treatment, though optimal extent remains debated.