The kidney is compressed, most often, by a post-traumatic subcapsular hematoma (a collection of blood beneath the capsule surrounding the kidney) or, less often, by a cyst or tumor pressing on the renal parenchyma (substance of the kidney). The compression decreases blood flow to the kidney which triggers the excess secretion of the hormone renin and this, in turn, produces the hypertension. which may take months or years to develop.
Reviewed on 12/11/2018
CONTINUE SCROLLING FOR RELATED SLIDESHOW