This is a response to a question about biopsy results of a dog's leg that diagnose possible fibrosarcoma. The veterinarian has recommended amputation as quickly as possible. As written, they indicate that the mass is definitely a kind of cancer called a sarcoma. In general, poorly differentiated tumors mean that the tumor cells are so malignant that it is impossible to determine the normal tissue type from which the tumor is derived. Chest X-rays are also advisable to look for evidence of tumor spread.
Amputation is the best option for local control of the tumor, particularly if it is large.
The benefit of adding chemotherapy to the treatments listed above is unknown at this time. If you or your veterinarian have not already done so, please consult a qualified veterinary oncologist to further explore the treatment options for your pet. The information provided through OncoLink should not be used for diagnosing or treating a health problem or a disease. It is not a substitute for professional care. If you have or suspect you may have a health problem, you should consult your health care provider.