Ultrastructure of the tubular wall of the prepuberal cryptorchid human testis.

The tubular wall in the human prepuberal testis of cryptorchid patients has been examined by ultrastructural and histochemical analysis. When compared with the normolocated testes, a disorganization of the tubular wall due to cryptorchidism is apparent. Alterations regarding single elements of the tubular wall are described and a positive correlation seems to exist between the age and the amount of the damage. A possible relation between morphological changes and hormone therapy is discussed.