Canine and feline lipomas, liposarcomas
Canine and feline lipomas, liposarcomas
Canine and feline lipomas are mesenchymal skin tumors formed by the accumulation of fat cells and are one of the most common pet tumors. Generally, canine and feline lipomas are benign, with tumors of varying sizes that grow slowly and rarely show adverse symptoms, while liposarcomas may become infected.
Clinical signs of lipoma and liposarcoma in dogs and cats
Lipomas are distinguished from normal adipose tissue by the presence of a small amount of heterogeneous mesenchyme (blood vessels and connective tissue) that separates the tumor into lobules of varying sizes. When there is an abundance of connective tissue, it is called a fibrolipoma, and when there is an abundance of capillaries and active growth, such as an increase in the number of endothelial cells and the formation of small tubular lumens or the absence of tubular lumens, it is called an angiomyolipoma. Liposarcoma has no complete envelope, the texture is soft or slightly hard, the shape is mostly nodular or lobulated, yellow or grayish-white, and there is often hemorrhage and necrosis in the tumor tissue.
Simple lipomas are slow-growing, smooth, mobile, soft and encapsulated. They are often located in the thoracic or lateral abdominal wall with subcutaneous injection, without clinical symptoms, and less commonly in the greater omentum, mesentery, and intestinal wall. It is light, with pseudo fluctuation, easy to tear, less bleeding, globular, nodular or irregular lobular, surrounded by a thin layer of fibrous envelope, with a lot of cellulose longitudinally and horizontally forming many intervals. Often there is a thin root tip, mobility is large, old lipomas become fat cysts, can be calcified or even ossified. If infected, the fat rapidly becomes necrotic or corrupt. On microscopic examination, it is indistinguishable from normal adipose tissue except for a fibrous capsule in the lipoma.
Dr. Oxygen Pet recommends
1. Although lipomas grow slowly and rarely show symptoms, they should be removed in time and anti-tumor drugs should be taken in order to avoid turning into fat cysts.
2. After the operation, pay attention to help the affected dogs and cats to control their weight, and after the recovery of the wounds after the operation, help the affected dogs and cats to carry out appropriate exercise to burn excess fat in the body.
3. Adjust the dietary structure, avoid feeding the affected dogs and cats with heavy fat, increase the proportion of vegetables, coarse grains and lean meat, and reduce the intake of fat.
Lipoma and Liposarcoma Treatment Options for Dogs and Cats
Surgical removal of solid lipomas.
1. Cyclophosphamide, 2 mg/kg, every other day or once daily, orally.
2, Vincristine, 0.02~0.05 mg/kg, once in 7~10 days, intravenous drip.
3. Isocyclophosphamide, 9~10 mg/kg, once in 2~3 weeks, intravenously.