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Recurrent mast cell tumor, forelimb of 16-year-old mixed-breed dog
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Recurrent mast cell tumor, forelimb of 16-year-old mixed-breed dog

    Photograph of a recurrent mast cell tumor in the forelimb of 16-year-old mixed-breed dog. This tumor stretched the skin slowly without causing ulceration, which can be typical of many mast cell tumors.

Courtesy of Dr. Rachel Jones.