Lymphoma with a size of a small walnut around the 2nd sequence mammary gland under the abdomen was observed in the tabby cat of Mrs Belma MERCIKOGLU. Pathological mass was removed by a surgical operation. Primary recovery was provided in the wound on the 9th day. Sutures were removed. In the postoperative period of the operation; the case was relapsed even though the practices having chemotherapeutic effects that would provide cell regeneration were performed. The patient had to undergo several operations from the same area. The WinPet MedVest was used in all the postoperative periods. The patient had continued its life with MedVest for almost 1 year
