Development of bone tumors as a result of chronic osteomyelitis represents a relatively rare and late complication in humans and animals. We described a malignant transformation (chondroblastic osteosarcoma) in a 7-year-old German shepherd with a history of polyostotic osteomyelitis caused by Serratia liquefaciens when the dog was 15 months old. The tumor developed in the right humera... https://www.bekindtopets.com/quick-grab-Canine-Spectra-KC-3-Single-Dose-great-price/