Extremity gangrene in utero.

A neonate with extremity gangrene resulting from intrauterine embolization of infarcted placental substances is discussed. This rare clinical entity is thought to be most commonly a manifestation of embolic phenomenon during maturation of the neonatal circulatory system. Management of neonatal gangrene is conservative, delaying amputation as long as possible since the line of demarcation tends to migrate distally. Evidence of multiple emboli should be carefully sought prior to definitive treatment.