PERIANAL AND MAMMARY CANCERS

摘要

Mammary cancer in dogs is different to that in cats,. In dogs less than 50% mammary tumors are malignant and well over half of these can be cured with “conservative” surgery. Poor prognostic signs include large volume (> 3 cm diameter), recent rapidgrowth, ulceration and high histologic grade. The role of chemotherapy, radiation and antihormone therapy is unclear. In cats, mammary cancer is usually malignant and often requires radical mastectomy. Tumor volume is prognostic with tumors greater than 2 cm diameter doing poorly. Even with radical resection over half of cats will die of metastatic disease. Prospective trials with adjuvant chemotherapy (e.g. doxorubicin) are underway.