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USMLE Step 1 Forum USMLE Step 1 Discussion Forum: Let's talk about anything related to USMLE Step 1 exam |
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Q- A 12-year-old female is evaluated for enlarged phallus at puberty. Examination reveals no breast development, a blind vaginal pouch and no uterus. Laboratory tests show normal levels of testosterone and estrogen and very low levels of dihydrotestosterone (DHT). What is the most likely diagnosis?
A- Female pseudohermaphrodite B- Male pseudohermaphrodite C- True hermaphrodite D- Turner’s syndrome Q- Which of the following is the enzyme responsible for conversion of testosterone into dihydrotestosterone (DHT)? A- 17 alpha-hydroxylase B- 3-beta-hydroxylase C- 5-alpha-reductase D- Aromatase Answer and Explanation |
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