Mammary tumors are the most common tumor in female dogs. Malignant (cancerous) or benign (non‑cancerous) tumors can occur. The cause of these tumors is unknown, but there is a hormonal influence on tumor development and rate of growth. Treatments for mammary tumors include surgery, irradiation, and chemotherapy. The type of treatment used is determined by the kind of tumor and the degree to which it has spread. Important Points in Treatment
- Surgical removal of these tumors is the treatment of choice. A sample of the tissue will be submitted to a pathologist to determine whether the growth is cancerous.
- Various blood tests and radiographs (x-rays) may be necessary to determine if the tumor has spread to other parts of the body.
- Medication: Give all medication as directed. Call the doctor if you cannot give the medication.
- See your Veterinarian for Diet, Activity and Other special instructions.
- Surgical patients: Inspect the incision daily. Report any abnormalities to the doctor.
Notify the Doctor if Any of the Following Occur
- Your pet is reluctant to eat or drink or seems depressed.
- Vomiting occurs and persists after the first few hours home.
- Your pet removes the sutures or otherwise damages the incision.
- There is swelling or drainage from the incision.
- There is a new enlargement of the mammary glands.