Related Experiment Video
Updated: Aug 21, 2026

Use of 3D Robotic Ultrasound for In Vivo Analysis of Mouse Kidneys
Published on: August 12, 2021
Thickening of the renal collecting system: a nonspecific finding at US
V Nicolet1, L Carignan, G Dubuc
1Department of Radiology, Hôpital Notre-Dame, Montréal, Québec, Canada.
Abstract:
The records of 22 patients in whom wall thickening of the renal collecting system was seen at ultrasound (US) were retrospectively reviewed. Wall thickening was found in 15 patients with renal transplants and seven with native kidneys. Severe thickening occurred with transplant rejection, but thickening also occurred with urinary tract infection, reflux, or chronic obstruction in both transplanted and native kidneys. As such, thickening of the renal collecting system seen at US is a nonspecific finding that must be correlated with the clinical and laboratory findings.
Related Concept Videos
Nephrons
Renal Corpuscle
Glomerulus: Structure and Function
The glomerulus is a tiny, intricate network of capillaries located at the beginning of the nephron. It's enveloped by the Bowman's capsule and receives its blood supply from an afferent arteriole, which divides into numerous capillaries...
Renal Tubule and Collecting Duct
Proximal Convoluted Tubule (PCT):
The PCT is the initial segment of the renal tubule, extending from the Bowman's capsule that encloses the glomerulus. Its convoluted structure and microvilli-lined cells increase the surface area for reabsorption. The PCT reabsorbs glucose, amino acids, sodium, and water from the filtrate, ensuring essential...
Anatomy of the Genitourinary System I: Kidneys and Ureters
Nursing Assessment of the Genitourinary System II: Inspection and Palpation
Imaging Studies II: Ultrasonography

