[MIM*312300 and MIM*313700] partial androgen sensitivity; a familial form of male pseudohermaphroditism characterized by varying degrees of ambiguous genitalia or hypospadias, postpubertal development of gynecomastia, and infertility associated with seminiferous tubular sclerosis; cryptorchidism may be present, and Leydig cell hypofunction may lead to impotence in later years; chromosomal studies show 46,XY karyotype; X-linked recessive inheritance, caused by mutation in the androgen receptor gene (AR) on Xq.