USMLE Answer 37

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37. The correct answer is D. You should recognize this as a probable case of multiple endocrine neoplasia, specifically, MEN III (formerly MEN II b). Features of this autosomal dominant condition include medullary carcinoma of the thyroid, pheochromocytoma, and oral and intestinal ganglioneuromatosis (including mucosal neuromas).

Gastrinomas (choice A), insulinomas (choice B), and pituitary adenomas (choice E) are found in MEN I.

Parathyroid adenomas (choice C) are found in MEN I and II.