Cancer screening exams can help find soft tissue sarcoma at its earliest stage when the chances for successful treatment, optimal outcomes and fewer side effects are greatest. These tests are usually done when a patient is healthy and has no specific symptoms.
Not only are expert cancer researchers at the OSUCCC – James continually working to detect and diagnose soft tissue sarcoma early, but they are also developing additional tests to detect and diagnose cancer even earlier, leading to improved outcomes, faster responses and fewer side effects.
Soft Tissue Sarcoma Risk Factors
Anything that increases your chances of soft tissue sarcoma is called a risk factor. A risk factor is anything that increases your risk of getting soft tissue sarcoma. Risk factors for soft tissue sarcoma include the following inherited disorders:
- Neurofibromatosis type 1 (NF1; von Recklinghausen disease)
- Tuberous sclerosis (Bourneville disease)
- Familial adenomatous polyposis (FAP; Gardner syndrome)
- Li-Fraumeni syndrome
- Werner syndrome (adult progeria)
- Nevoid basal cell carcinoma syndrome (Gorlin syndrome)
Other risk factors for soft tissue sarcoma include the following:
- Past treatment with radiation therapy for certain cancers
- Being exposed to certain chemicals, such as Thorotrast (thorium dioxide), vinyl chloride or arsenic
- Having swelling (lymphedema) in the arms or legs for a long time
(Source: National Cancer Institute)
Not everyone with risk factors will get soft tissue sarcoma, but having certain risk factors may increase your risk of developing the disease, so it’s important to talk to your doctor.
Diagnosing Soft Tissue Sarcoma
If soft tissue sarcoma is suspected, your doctor will examine you and ask you about medical history, including any symptoms you may have. You may also have one of the following tests to diagnose the disease.
In a biopsy, a pathologist removes a small sample of cells from the tissue to be analyzed under a microscope for signs of cancer. There are several ways to obtain a biopsy sample for diagnosing soft tissue sarcoma:
The doctor removes part of a lump in the tissue or a tissue sample during a surgical procedure.
The doctor uses a wide needle to remove a small sample of tissue.
A surgeon removes an entire lump or area of abnormal tissue.
Removed tissue will undergo other tests following biopsy to help the OSUCCC – James experts classify the type and subtype of soft tissue sarcoma. These tests include:
This test uses dye on proteins called antibodies to identify certain antigens in the tissue sample. Antigens are any substance that causes a response in the body’s immune system against that substance. Antigens include toxins, bacteria, chemicals, viruses or other substances that come from outside the body.
Light & Electron Microscopy
Changes in cells that indicate cancer types are evaluated under high-powered microscopes.
This test analyzes the cells to identify changes in the chromosomes.
Fluorescence in Situ Hybridization (FISH)
This laboratory test analyzes the cells’ genes or chromosomes. A special light and fluorescent dye cause certain genes or specific areas of chromosomes to light up when pieces of lab-created DNA attach to them.
Flow cytometry measures numbers and proportions of cells in a tissue sample and can determine characteristics of cells, such as their shape, size and presence of tumor markers. Tumor markers are substances that indicate certain cancers.
Tests Used to Stage Soft Tissue Sarcoma
Identifying soft tissue sarcoma stages helps determine how much cancer is present your body, the size and grade of the tumor, whether or not the cancer has spread, and if so, where it has spread. Staging is just one of many ways that the OSUCCC – James soft tissue sarcoma cancer experts plan the most targeted, accurate way to treat your specific cancer.
The OSUCCC – James experts will order tests to help stage soft tissue sarcoma. These tests include:
Your OSUCCC – James physician will ask questions about your health history as well as examine your body for additional lumps or signs of disease and determines your overall health.
This exam uses X-rays to produce images of the organs and bones inside your chest, especially the lungs.
Blood Chemistry Analysis
A blood sample is taken and measured for the amounts of certain substances in the blood.
Complete Blood Count
A blood sample is checked for the number of each type of blood cell, the amount of hemoglobin (the protein that carries oxygen) and how much of the blood is made up of red blood cells.
Computed Tomography Scan (CT)
A CT scan is an X-ray that produces detailed, cross-sectional images of the body.
Magnetic Resonance Imaging (MRI)
MRI uses a high-powered magnet and radio waves to capture high-resolution, detailed images of the body.
Positron Emission Tomography (PET)
A PET scan is an imaging examination used to find malignant tumor cells in the body. The specialists inject a small amount of radioactive glucose (sugar) into a vein, then use a specialized scanner that rotates around your body to take detailed pictures of where the glucose gathers in high amounts. Cancer cells absorb more glucose than normal cells.
(Source: National Cancer Institute)
Soft Tissue Sarcoma Stages
Soft tissue sarcoma stages include:
Stage I is divided into stages IA and IB:
- In stage IA, the tumor is low grade, which means it is likely to grow and spread slowly, and is 5 centimeters or smaller. It may be either superficial (in subcutaneous tissue, which is tissue beneath the skin, and has not spread into connective tissue or muscle below) or deep (in the muscle and may be in connective or subcutaneous tissue)
- In stage IB, the tumor is low grade (which means it is likely to grow and spread slowly) and is larger than 5 centimeters. It may be either superficial (in subcutaneous tissue with no spread into connective tissue or muscle below) or deep (in the muscle and may be in connective or subcutaneous tissue)
Stage II is divided into stages IIA and IIB:
- In stage IIA, the tumor is mid-grade (somewhat likely to grow and spread quickly) or high grade (likely to grow and spread quickly) and it is 5 centimeters or smaller. It may be either superficial (in subcutaneous tissue with no spread into connective tissue or muscle below) or deep (in the muscle and may be in connective or subcutaneous tissue)
- In stage IIB, the tumor is mid-grade (somewhat likely to grow and spread quickly) and it is larger than 5 centimeters. It may be either superficial (in subcutaneous tissue with no spread into connective tissue or muscle below) or deep (in the muscle and may be in connective or subcutaneous tissue)
In stage III, the tumor is either:
- High grade (likely to grow and spread quickly), larger than 5 centimeters and either superficial (in subcutaneous tissue with no spread into connective tissue or muscle below) or deep (in the muscle and may be in connective or subcutaneous tissue); or
- Any grade, any size and has spread to nearby lymph nodes
Stage III cancer that has spread to the lymph nodes is advanced stage III.
In stage IV, the tumor is any grade, any size and may have spread to nearby lymph nodes. Cancer has spread to distant parts of the body, such as the lungs.
(Source: National Cancer Institute)
If you’ve been diagnosed with soft tissue sarcoma, would like a second opinion or would like to speak with a sarcoma specialist, please call The James Line at 800-293-5066 or 614-293-5066 to make an appointment.