<unk>  (a.k.a. Del Castillo syndrome and germ<unk>  aplasia ) is a disorder characterized by male sterility without sexual abnormality. It describes a condition of the testes in which only<unk> <unk> s line is present in seminiferous tubules.
Sertoli cell-only syndrome
Persistent adrenarche syndrome
Angelman syndrome
Perlman syndrome
Klinefelter syndrome
Familial male-limited precocious puberty
Young's syndrome
Partial androgen insensitivity syndrome