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Medical Term:

renal sinus


the cavity of the kidney, containing the calices and pelvis of the ureter and the segmental vessels embedded within a fatty matrix. The renal sinuses cause the kidneys to appear hollow or C-shaped on cross section or medical imaging.

Synonym(s): sinus renalisTA

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.