<center>The integument of this collared lizard has a red-orange mass on its surface.</center>
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A ×16 and a ×100 photograph of Wright–Giemsa stained cytologic preparations of synovial fluid aspirated from the stifle joint of a five-year-old, neutered female Old English Sheepdog.
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[[Image:Rep 21.jpg|center|200px|link=Reptiles and Amphibians Q&A 21]]