Molar pregnancy and hyperthyroidism in a 13 year-old girl.

A 13 year-old girl presented with secondary amenorrhea, vaginal bleeding and dyspnea. Hyperthyroidism was diagnosed based on clinical symptoms and thyroid function test. Ultrasonographic findings and tissue histology from curettage were consistent with a hydatidiform mole. She reached clinical euthyroidism 2 weeks after uterine curettage and propylthiouracil treatment. The diagnosis of putative adult diseases in pediatric patients should not be ruled out.