Figure 2a. Recurrent pseudoaneurysm after embolization in a 35-year-old woman. The patient had intermittent vaginal bleeding after D&C for a therapeutic abortion 9 weeks earlier. She had markedly aggravated, intractable vaginal bleeding after therapeutic D&C 2 weeks earlier for abnormal vaginal bleeding. (a) Longitudinal gray-scale US image shows a septate cystic lesion (arrows) at the left wall of the lower uterus. (b) Longitudinal color Doppler US image shows that the cystic structure is filled with blood and has varying colors (arrows). (c) Longitudinal duplex Doppler US image shows turbulent arterial flow within the sac. (d) Left internal iliac angiogram shows the pseudoaneurysm (arrow), which is supplied by the left uterine artery. Arterial embolization with a 3-mm-diameter coil was performed. (e) Follow-up longitudinal US image obtained 3 days later shows thrombosis of the pseudoaneurysm (arrows). Two weeks later, the bleeding recurred and Doppler US showed recanalization of the pseudoaneurysm. (f, g) Photograph of the pathologic specimen (f) and photomicrograph (original magnification, x100; hematoxylin-eosin stain) (g) show degenerating retained chorionic villi (arrowheads in g) against a background of hematoma in placenta accreta (arrows in f). Scale in f is in centimeters.