Hormone levels in males with a gonadotroph adenoma

Basal serum concentrations of FSH, LH, free alpha subunit, and LH-beta subunit in 38 males with clinically nonfunctioning gonadotroph macroadenomas. Each dot represents the value in a single patient; the horizontal lines encompass the ranges of an age-matched control group. Seventeen males had supranormal levels of at least 1 intact hormone or subunit, and 4 had multiple basal elevations.