Which of the following statements regarding medullary carcinoma of the thyroid are true?
- Approximately 75% of all cases are hereditary
- The overall 10-year survival rate is less than 10%
- Medullary carcinoma of the thyroid is associated with both multiple endocrine neoplasia IIa (MEN IIa) and multiple endocrine neoplasia IIb (MEN IIb) syndromes
- Prophylactic total thyroidectomy is recommended for MEN IIa and MEN IIb patients after the age of 10 years
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Endocrinology MCQs
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