NBME 20 Calcitonin (NBME Answers)

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Retired NBME Answer Explanations

Retired NBME 20 Answers

nbme20/Block 3/Question#3 (reveal difficulty score)
A 45-year-old woman has a thyroidectomy ...
Calcitonin 🔍 / 📺 / 🌳 / 📖
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submitted by ∗hayayah(1212)

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Patient has medullary carcinoma. Malignant proliferation of parafollicular "C" cells that produce calcitonin and have sheets of cells in an amyloid stroma.

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xxabi Just to add - patient likely has MEN 2A or 2B with the presence of medullary thyroid cancer and pheochromocytoma +14

sympathetikey @xxabi Was going to say the same thing. +

dermgirl The patient have MEN 2B (Medullary thyroid carcinoma + Pheochromocytoma) Page 351 FA. +

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