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Urinary Bladder - Calculus/Crystal - Gallery

Image of calculus in the urinary bladder from a male F344/N rat in a chronic study
A calculus (asterisk) fills the entire bladder lumen from a male F344/N rat in a chronic study.
Image of calculus in the urinary bladder from a male F344/N rat in a chronic study
Hyperplasia of the urothelium (arrow) due to the presence of the calculus, from a male F344/N rat in a chronic study.
Image of calculus in the urinary bladder from a female Harlan Sprague-Dawley rat in a chronic study
A small basophilic calculus (arrow) associated with chronic inflammation and urothelial hyperplasia, from a female Harlan Sprague-Dawley rat in a chronic study.
NTP is located at the National Institute of Environmental Health Sciences, part of the National Institutes of Health.