Which of the following statements regarding medullary carcinoma of the thyroid are true?
- Bilateral medullary carcinoma of the thyroid occurs in every patient with multiple endocrine neoplasia 1, 2a or 2b
- Medullary carcinoma of the thyroid accounts for approximately one-third of all thyroid malignancies

- 20% of medullary carcinoma of the thyroid cases are familial
- Provocative testing with pentagastrin and calcium infusion for family members at risk for medullary carcinoma of the thyroid is diminished in importance by the recent development of specific genetic testing
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Category:
Endocrinology MCQs
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