Man With Sudden Onset of Bilateral Flank Pain Fu-Yu Lin, MD, I-Ha Lao, MD, Yen-Jen Wang, MD, Wen-Sheng Tzeng, MD  Annals of Emergency Medicine  Volume 60, Issue 3, Pages e7-e8 (September 2012) DOI: 10.1016/j.annemergmed.2012.03.029 Copyright © 2012 American College of Emergency Physicians Terms and Conditions

Figure 1 Abdominal ultrasonograph demonstrating mixed hyper- and hypoechoic lesions at the right perirenal space (indicated by caliper marking). The contralateral kidney (not shown) demonstrated a similar sonographic appearance. Annals of Emergency Medicine 2012 60, e7-e8DOI: (10.1016/j.annemergmed.2012.03.029) Copyright © 2012 American College of Emergency Physicians Terms and Conditions

Figure 2 Abdominal CT demonstrating multiple microaneurysms (white arrowheads) within the bilateral renal parenchyma, as well as bilateral perirenal hematomas (white arrows). Annals of Emergency Medicine 2012 60, e7-e8DOI: (10.1016/j.annemergmed.2012.03.029) Copyright © 2012 American College of Emergency Physicians Terms and Conditions

Figure 3 Digital subtraction angiography of the right renal arteries demonstrating multiple small aneurysms (white arrowheads). The contralateral kidney (not shown) demonstrated similar angiographic findings. Annals of Emergency Medicine 2012 60, e7-e8DOI: (10.1016/j.annemergmed.2012.03.029) Copyright © 2012 American College of Emergency Physicians Terms and Conditions