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90. What are the causes of poor virilization with near normal-sized testes?

Poor virilization despite near normal-sized testes occurs due to decreased

androgen production/action with normal seminiferous tubule growth and

development during peripubertal period. The disorders include partial IHH,

ab

c

Fig. 7.20 An 18-year-old boy with acquired bilateral testicular failure. Note the normal penile
length and single atrophic testes. He had mumps orchitis (left testis) at 10 years of age with small
palpable left residual testis. Thereafter, he had normal pubertal events. At age 17 years, he had
right testicular torsion and underwent orchidectomy

7 Delayed Puberty