Presentation of Case A 30-year-old man was admitted to the hospital because of hypogonadism. He was well until four years earlier, when diminished libido developed, followed by reduced volume of ejaculate and then by impotence. His muscle mass diminished, his strength decreased, and he noticed loss of body hair. On evaluation elsewhere x-ray films of the skull were normal. The prolactin was normal; basal and stimulated values of Cortisol, thyroxine, and human growth hormone were also normal; the testosterone, follicle-stimulating hormone, and luteinizing hormone were low and did not respond to stimulation. He was referred to this hospital. The patient.
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