Ectopic Bone as a Nidus for Calcium Oxalate Urocystolithiasis in a Cat |
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| Authors: | JP Lulich HS Prasad M Manno B Bagley |
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| Institution: | 1. Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, Minneapolis, MN;2. Oral Pathology, College of Dentistry, University of Minnesota, Minneapolis, MN;3. Chemical Engineering and Materials Science, College of Science and Engineering University of Minnesota, Minneapolis, MN;4. Earth Sciences, College of Science and Engineering, University of Minnesota, Minneapolis, MN |
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| Abstract: | A 7‐year‐old female spayed domestic shorthair cat was referred to the urology service for nonsurgical urocystolith removal. A urolith was attached to the urothelium by ectopic bone. Interventional removal without surgery was successful. Follow‐up evaluation 3 years after urolith removal revealed recurrent uroliths, bladder wall mineralization, and marked renal mineralization. This case illustrates the metaplastic potential of the urothelium and that ectopic bone should be included among the pathological factors that promote lithogenesis. |
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| Keywords: | Dystrophic mineralization Ectopic ossification Heterotopic bone |
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