What laboratory test is most appropriate for this patient?
Answer C. CalcitoninThis patient had multiple flesh-colored papules on the eyelids, lips, and tongue. This phenotype is suggestive of multiple endocrine neoplasia (MEN) type 2B (MEN-2B), an autosomal dominant condition characterized by medullary thyroid cancer among other features. Serum calcitonin can be used to screen for medullary thyroid cancer.
Alpha-fetoprotein
Beta2-microglobulin
Calcitonin
Insulin-like growth factor-1
Endocrinology