Histiocytomas in Dogs: Symptoms, Treatment, and More by Brittany Kleszynski, DVM
What Are Histiocytomas in Dogs? Cutaneous histiocytomas (CCH) in dogs are fairly common benign (non-cancerous) skin masses that are not usually a cause for concern. Sometimes referred to as button tumors in dogs, histiocytomas appear as single red bumps that are generally less than an inch wide. They most commonly grow on a dog’s head, face, ears, or legs. These pink growths usually have smooth… PetMD