Postnatal germ cell development during first 18 months of life in testes from boys with non-syndromic cryptorchidism and complete or partial androgen insensitivity syndrome

Study examines postnatal germ cell development in cryptorchid testes during the first 18 months, comparing unilateral/bilateral undescended testes with androgen insensitivity syndromes. Findings show Oct4+ gonocyte transformation into spermatogonia may be delayed in undescended testes, with implications for optimal surgical timing.