Distention of the pelvis and calices of the kidney, accompanied by suppuration and associated with obstruction.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Examples from the Web for pyonephrosis
Historical Examples of pyonephrosis
The blood pressure may be useful in differentiating uremic coma from the coma of pyonephrosis.Arteriosclerosis and Hypertension:
Louis Marshall Warfield