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A comprehensive review on MEN2B.

Frederic Castinetti1, Jeffrey Moley2, Lois Mulligan3

  • 1Department of EndocrinologyAix Marseille University, CNRS UM 7286, Assistance Publique Hopitaux de Marseille, Marseille, France frederic.castinetti@univ-amu.fr.

Endocrine-Related Cancer
|July 13, 2017
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Summary
This summary is machine-generated.

Multiple Endocrine Neoplasia type 2B (MEN2B) is a rare tumor syndrome. Understanding its non-endocrine signs is crucial for earlier diagnosis and better patient outcomes.

Keywords:
RETganglioneuromasmarfanoidmedullary thyroid cancerpheochromocytoma

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Area of Science:

  • Endocrinology
  • Oncology
  • Genetics

Background:

  • Multiple Endocrine Neoplasia type 2B (MEN2B) is a rare autosomal dominant hereditary tumor syndrome.
  • It is characterized by medullary thyroid carcinoma (MTC) in 100% of cases and pheochromocytoma in 50% of cases, alongside disabling extra-endocrine features.

Purpose of the Study:

  • To provide insights into the natural history of MEN2B.
  • To identify gaps in current knowledge to optimize patient management.
  • To emphasize the need for better understanding of non-endocrine signs for early diagnosis.

Main Methods:

  • This is a review article.
  • It synthesizes available literature on MEN2B.
  • It highlights areas requiring further research.

Main Results:

  • MEN2B typically presents with early-onset MTC, prompting recommendations for prophylactic thyroidectomy before age one.
  • A significant proportion of MEN2B cases arise from de novo mutations.
  • Non-endocrine manifestations are frequent and can be severe.

Conclusions:

  • Early diagnosis of MEN2B is critical for improving long-term outcomes.
  • Further research, particularly large-scale studies, is needed to detail MEN2B characteristics and outcomes.
  • Improved understanding of non-endocrine signs can facilitate earlier diagnosis and management.