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Tuesday, June 12, 2018

About | Duke Cancer Institute
src: www.cancer.duke.edu

Soft tissue sarcoma refer to a broad group of tumors that originate from connective tissues. They tend to have similar histologic appearance and biological behavior, and can be either benign or malignant. Soft tissue sarcomas can arise in any part of the pet's body but skin and subcutaneous tumors are the most commonly observed. Soft-tissue sarcomas comprise approximately 15% of all skin and subcutaneous tumors in dogs and approximately 7% of all skin and subcutaneous tumors in cats. The variety of different tumors that fall under the category of soft tissue sarcomas includes fibrosarcoma, hemangiopericytoma, liposarcoma, rhabdomyosarcoma, leiomyosarcoma, malignant fibrous histiocytoma, malignant nerve sheath tumors, myxosarcoma, myxofibrosarcoma, mesenchymoma, and spindle cell tumor.


Video Soft tissue sarcoma in cats and dogs



Signs and symptoms

Soft tissue sarcomas are often detected as a firm mass located on the trunk, limbs, or oral cavity. The symptoms depend on the tumor's location and degree of invasion. For example, tumors in the gastrointestinal tract may cause vomiting, diarrhea, or weight loss. Tumors in the mouth may cause bad breath, difficulty swallowing, or lack of appetite. Tumors arising in the peripheral nerves may cause pain, lameness, or neurological symptoms.


Maps Soft tissue sarcoma in cats and dogs



Diagnosis

Prior to initiating any type of treatment, it is important to gather as much information as possible regarding the tumor's tissue origin, size, site, histologic grade (level of aggressiveness) and whether it has spread to other organs. To definitively confirm the diagnosis of a soft-tissue sarcoma, the veterinarian will have to perform biopsy for histopathologic evaluation. Additional tests are performed in order to evaluate how advanced the cancer is. These tests generally involve blood and serum biochemical tests, chest X-rays to check for metastasis to the lungs and imaging studies [e.g. ultrasound, computed tomography (CT) or magnetic resonance imaging (MRI)] to evaluate the extent of the disease.


Photodynamic hyperthermal chemotherapy with indocyanine green in ...
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Treatment

There are three main treatment options available to treat soft tissue sarcoma in cats and dogs: surgery, radiation therapy, and chemotherapy. Surgery alone or in combination with radiation therapy are used to treat the tumor at its original location, and chemotherapy is usually used to prevent or at least slow down the process of metastasis in pets diagnosed with tumor subtypes known to be highly aggressive.


Tumor gradingâ€
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References


Cedaredge vet blog - Surface Creek Veterinary Center
src: www.surfacecreekveterinarycenter.com


External links

  • Soft Tissue Sarcoma in Cats and Dogs from Pet Cancer Center
  • "Treatment and Prevention of Canine Cancer" from CanineCare.US
  • Soft Tissue Sarcomas from The Merck Veterinary Manual
  • Soft Tissue Sarcomas from Animal Cancer & Imaging Center

Source of the article : Wikipedia

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