Sentences with phrase «for malignant mammary tumors»
Treatment for malignant mammary tumors includes chemotherapy, radiation therapy and anti-estrogen therapy.
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Mammary Carcinoma Female dogs are at high risk for developing malignant mammary Mammary Carcinoma Female dogs are at high risk for developing malignant mammary mammary tumors.
The chances for mammary gland tumors, which are typically malignant in pets, is greatly reduced for females.
Approximately 50 percent of malignant mammary tumors in dogs have receptors for either estrogen or progesterone.
Despite this, however, spaying a female prior to 2-1/2 years significantly decreases risk for both benign and malignant mammary tumors.
Early spaying may therefore, reduce occurrence of malignant lesions because the procedure removes the source of the hormones that cause some mammary cells to lose growth control, which puts these dividing cells at high risk for mutation and malignant transformation by environmental carcinogens.In fact, recent reports have identified activation of a specific oncogene in a number of canine mammary tumors.
If the mammary tumor is malignant, the surgical site and regional lymph nodes should be checked for local tumor recurrence and metastasis, respectively, every 3 months for the first 12 months after surgery and then every 6 months thereafter.
The role of chemotherapy in cats and dogs with malignant mammary tumors has not been clearly defined for all tumor types but oncologist consultation after surgery is often recommended.
In dogs, the size of malignant mammary tumors is an important consideration when determining prognosis, both for local tumor recurrence and survival time.
Removing the lump for biopsy is not as bad as it sounds, however, since the first line of treatment of malignant mammary tumors is surgical removal.
The outcome for patients with malignant mammary gland tumors depends on several factors including tumor type, histologic grade (appearance of the tumor cells under the microscope and how similar or dissimilar they are to normal tissues), tumor size, and tumor stage (presence of regional and distant metastasis).