UROLITHS IN SMALL AND OTHER ANIMALS - A R ETROSPECTIVE STUDY OF THE YEARS 1980-1989

More than 500 uroliths from dogs, cats, minks, rabbits and 9 further a nimal species originating from various regions of former East Germany were analysed. The observations were made between 1980 and 1989 using X-ray diffraction and infrared spectroscopy. The urinary stones consis ted of struvite, whewellite, weddellite, cystine, ammonium urate, brus hite, whitlockite, hydroxyapatite or carbonate-apatite, calcium carbon ate, silicium dioxide and organic matrix stones. In dogs, the most fre quent types were struvite and apatite concrements, followed by calcium oxalate and cystine uroliths. Among the diseased animals poodles, dac hshunds and terriers ranked first. In the analysed material from cats apatite and struvite predominated. With few exceptions, minks formed s truvite uroliths only. The analysed calculi from rabbits consisted pri ncipally of calcium phosphate or calcium carbonate concrements. The pr esent analysis has been compared with results of former studies, diffe rences are discussed.