Pandit R.S.,Cholesterol and Metabolism Center |
Glueck C.J.,Cholesterol and Metabolism Center
Blood Coagulation and Fibrinolysis | Year: 2014
Our specific aim is to describe the development of thrombotic osteonecrosis of the jaws after testosterone-anastrozole therapy in a 55-year-old white man subsequently found to have previously undiagnosed factor V Leiden heterozygosity. Before the diagnosis of V Leiden heterozygosity, he was given testosterone gel, 50mg/day, and on testosterone, serum testosterone (963ng/dl) and estradiol were high (50pg/ml). Anastrozole was started, and testosterone was continued. Six months later, osteonecrosis of the jaws was diagnosed. Exogenous testosterone is aromatized to estradiol and estradiol-induced thrombophilia, when superimposed on underlying familial thrombophilia, as in this case, may lead to thrombosis and osteonecrosis. We recommend that before giving testosterone, at a minimum, screening for the factor V Leiden and G20210A mutations, and factor VIII and XI activity be carried out, to avoid unanticipated thrombosis. © 2014 Wolters Kluwer Health Lippincott Williams & Wilkins.