Thyroid-stimulating immunoglobulin as a cause of recurrent intrauterine fetal death.

Hyperthyroidism is one of the numerous causes of infertility and recurrent abortion. Little mention has been made, however, of the specific role of thyroid-stimulating immunoglobulin (TSIg) as a potential etiology, especially in the clinically euthyroid mother. This report describes a case of intrauterine fetal death in a euthyroid woman with TSIg.