Rapidly Progressing Flank Mass Li-Wen Huang, MD, Jen-I. Hwang, MD, Chen-Kuo Chu, MD  Annals of Emergency Medicine  Volume 60, Issue 1, Pages e1-e2 (July 2012) DOI: 10.1016/j.annemergmed.2012.01.018 Copyright © 2012 American College of Emergency Physicians Terms and Conditions

Figure 1 Bulging right flank with ecchymosis. Annals of Emergency Medicine 2012 60, e1-e2DOI: (10.1016/j.annemergmed.2012.01.018) Copyright © 2012 American College of Emergency Physicians Terms and Conditions

Figure 2 Sonography showing a heteroechoic mass. Annals of Emergency Medicine 2012 60, e1-e2DOI: (10.1016/j.annemergmed.2012.01.018) Copyright © 2012 American College of Emergency Physicians Terms and Conditions

Figure 3 CT revealing a large hematoma in the subcutaneous space of the right lateral abdominal wall, with contrast media extravasation (white arrow). Annals of Emergency Medicine 2012 60, e1-e2DOI: (10.1016/j.annemergmed.2012.01.018) Copyright © 2012 American College of Emergency Physicians Terms and Conditions

Figure 4 Abdominal angiography. Used with permission of Chen-Kuo Chu, MD, Department of Emergency Taichung Veterans General Hospital, Taichung, Taiwan. Annals of Emergency Medicine 2012 60, e1-e2DOI: (10.1016/j.annemergmed.2012.01.018) Copyright © 2012 American College of Emergency Physicians Terms and Conditions