paeds336

paeds336

A 15-year-old boy presents to the clinic with a concern that many of his friends are now taller than him. He feels that he has not grown as they have. On physical examination, sparse dark coarse hair was observed over the junction of the pubes. He reports having noticed some enlargement of his penis and growth of his testis. His testicular volume was measured to be 8 ml. What is the most likely diagnosis?