1. The yin–yang sign Kidney International
Chen-wei Wang, Po-Chin Liang, Ju-Ton Hsieh 
Kidney International 
Volume 75, Issue 1, (January 2009)
DOI: /ki
Copyright © 2009 International Society of Nephrology Terms and Conditions

2. Figure 1
Right renal tumor. (a) The ‘yin–yang sign’ in a large pseudoaneurysm of the right upper renal artery. (b) The angiography showed a whirlpool appearance in the large pseudoaneurysm of the right upper renal artery.
Kidney International  , DOI: ( /ki )
Copyright © 2009 International Society of Nephrology Terms and Conditions