Idiopathic arterial calcification of infancy: prenatal and postnatal effects of therapy in an infant.

In an infant with idiopathic arterial calcification of infancy, prenatal diagnosis of arterial calcification was made by ultrasonography and allowed initiation of therapy in utero. Etidronate therapy produced apparent radiographic and ultrasonographic improvement in the degree of vascular calcification but did not prevent the lethal progression of intimal vascular occlusive disease.