What should I do about the lump on my dog’s skin?

A mast cell tumor on a dog

Finding a skin lump on your dog always provokes concern. Is it just another fatty tumor, or is it something more sinister? Fortunately, veterinarians have the diagnostic tools to determine whether your pet’s lump is malignant or benign, but it’s up to pet owners to alert your veterinarian of any new growths. Fine Needle Aspiration

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