잠복 고환증의 환자가 고환 고정술을 받지 않고 성인이 되었을 때, 정자 생성 능력에 미치는 영향은?

심화 해설

임상 시나리오

핵심 개념

• Cryptorchidism — A congenital condition where one or both testes fail to descend into the scrotum, remaining in the abdomen or inguinal canal, which can lead to impaired spermatogenesis due to higher temperatures.
• Spermatogenesis — The process of sperm cell development in the seminiferous tubules of the testes, involving stages from spermatogonia to mature spermatozoa, which is highly sensitive to temperature and can be disrupted in cryptorchidism.
• Azoospermia — A condition characterized by the absence of sperm in the ejaculate, often resulting from severe damage to spermatogenic cells, as seen in untreated cryptorchidism due to thermal injury.
• Orchiopexy — A surgical procedure to fix an undescended testis into the scrotum, typically performed in early childhood to prevent long-term complications like infertility and testicular cancer by restoring optimal temperature conditions.
• Hyperthermia — Elevated body or local temperature that, in the context of cryptorchidism, exposes the testes to conditions above the optimal scrotal temperature, leading to oxidative stress and apoptosis of germ cells, thereby impairing fertility.