Pathological Anatomy. Atlas of Macroscopic Specimens - Part 2. Pathology of Individual Organs and Systems - A. M. Romanyuk 2016
Pathology of the Urinary System
Chronic Pyelonephritis
Class="center">Хронічний пієлонефрит" height="378" src="/medical/pathologic_1/pathologic_1.files/image135.jpg" width="377"/>
Chronic Pyelonephritis
The Kidney surface is coarsely lobulated; on cross-section, areas of scar tissue alternating with relatively unchanged renal parenchyma are visible. The renal pelves are dilated with thickened, whitish walls. The tissue alterations in chronic pyelonephritis are often focal in nature: foci of interstitial inflammation, atrophy, and sclerosis are surrounded by unaffected renal tissue that may exhibit signs of regenerative hypertrophy. The ultimate consequence of chronic pyelonephritis is the Pyelonephritic Shrunken Kidney.
Last update: 10/08/2026
Editorial and Educational Adaptation: This material has been compiled based on the primary/original source text. The project team performed an editorial review, corrected technical inaccuracies, structured sections, and adapted the content for an educational format.
What was processed:
- elimination of formatting defects (OCR errors, structural breaks, corrupted characters);
- editorial organization of content;
- standardization of terminology in accordance with academic sources;
- verification of factual statements against the original source text.
All mentions of the author, publication year, and origin of the primary text have been preserved in accordance with the source.