Question 31 · LEK · Infertility
A 25-year-old man with normal male phenotype is examined because of infertility. Apart from a decreased sperm count in the semen analysis, gynecomastia was found and laboratory tests showed decreased follicle-stimulating hormone levels and increased testosterone levels. The most probable cause of the above abnormalities is:
- A. chemotherapy in the past.
- B. radiotherapy in the past.
- C. use of anabolic steroids.
- D. Kallmann syndrome.
- E. Sertoli cell-only syndrome.
Hint
Low FSH with high testosterone points to an exogenous androgen source suppressing the hypothalamic-pituitary axis.
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