Placenta percreta and uterine rupture associated with prior whole body radiation therapy.

Abstract

Injury to reproductive organs including the uterus is a known complication of ionizing radiation, but the risks to the mother and fetus during subsequent pregnancies are not well defined. A young woman with a remote history of whole body irradiation for childhood leukemia had uterine rupture at 17 weeks' gestation. Pathologic examination of the supracervical hysterectomy specimen revealed a posterior-fundal placenta percreta with a diffusely thinned myometrium (1-6 mm). The clinicopathologic findings were consistent with prior radiation injury. Uterine irradiation may predispose to abnormal placentation and uterine rupture in a subsequent pregnancy.