Spindle cell carcinoma in dogs (carcinoma is a term for any malignant cancer that arises from epithelial cells) is a term for tumors arising in connective tissues, blood and smooth muscles. Spindle cell carcinoma may develop in any part of a dog's body and the tumors may continue to grow or ulcerate. The connective tissues fill spaces between the organs forming tendons and ligaments. Most spindle cell tumors are solid with or without fluid in them and usually remain in the same place for a long time.
Diagnosis
Spindle cell cancer is diagnosed the same as any other tumor, with x-rays and aspiration via needle for testing. An incision may be made to obtain tissue for a biopsy as well.
Treatment
Surgery is usually the preferred option to remove the tumor. Amputation may be necessary if the tumor is located on an extremity. Radiation therapy may be used; however, chemotherapy does not seem to have any effect.