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[Multiple endocrine neoplasia type 2A].

Linas Juodele1, Virgilijus Krasauskas, Algimantas Zindzius

  • 1Clinic of Surgery, Kaunas University of Medicine, Eiveniu 2, 50009 Kaunas, Lithuania. juodele@hotmail.com

Medicina (Kaunas, Lithuania)
|April 12, 2006
PubMed
Summary

Multiple endocrine neoplasia type 2A (MEN 2A), or Sipple syndrome, is a rare inherited disorder. Early diagnosis and genetic screening improve patient outcomes for this rare cancer syndrome.

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Area of Science:

  • Endocrinology
  • Genetics
  • Oncology

Background:

  • Multiple endocrine neoplasia type 2A (MEN 2A), also known as Sipple syndrome, is a rare autosomal dominant disorder.
  • It is characterized by medullary thyroid carcinoma, pheochromocytoma, and primary hyperparathyroidism, often linked to c-ret protooncogene mutations.
  • Rarer associated conditions include Hirschsprung disease and cutaneous lichen amyloidosis.

Observation:

  • A clinical case of MEN 2A is presented involving a 43-year-old female.
  • The patient underwent surgery for pheochromocytoma seven years after diagnosis and treatment for medullary thyroid carcinoma.
  • This combination represents the most frequent tumor association in MEN 2A.

Findings:

  • Diagnosis was confirmed through clinical data, tumor analysis, and family history of inherited endocrine pathology.

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  • While MEN 2A has been diagnosed in Lithuania, advancements in genetic testing have refined diagnostic and prophylactic strategies.
  • Modern genetic examinations have improved survival prognosis for patients with MEN 2A.

    • Implications:

    • Understanding the pathogenesis and clinical spectrum of MEN 2A is crucial for early cancer detection.
    • Genetic screening of at-risk individuals enables timely cancer prevention and effective treatment strategies.
    • Raising awareness among general practitioners about MEN 2A's clinical and diagnostic features can improve patient management and outcomes.