Androgen insensitivity syndrome in a thoroughbred mare (64, XY--testicular feminization).Can Vet J. 2004 Jun; 45(6):501-3.CV
A Thoroughbred mare was presented for stallion-like behavior. Reproductive and ultrasonographic evaluation, testosterone assays, and karyotyping confirmed a diagnosis of androgen insensitivity syndrome (64, XY--testicular feminization). Surgery to remove abdominal testicles was successful in alleviating the behavioral abnormality. This condition is discussed with reference to the current literature.