Soft tissue sarcoma is rare cancer that can develop in any part of your body, including your feet. It starts in various soft tissues such as muscles, blood vessels, or connective tissue. Most of these tumors respond well to treatment.
Soft tissue sarcoma, in general, is rare. The American Cancer Society estimates that
Soft tissue sarcoma can develop in your feet, but it’s
Learn more about soft tissue sarcoma.
Sarcoma is a group of more than
- muscles
- tendons
- fat
- blood vessels
- nerves
Most tumors that form in the soft tissue of your foot are noncancerous. Cancerous soft tissue tumors are extremely rare.
In a small 2016 study, researchers found that synovial sarcoma was the most common type of soft tissue sarcoma among 62 cases treated at their clinic between 1992 to 2013. Synovial sarcoma develops in tissue near a joint.
Experts think that synovial sarcoma makes up
Chondrosarcoma seems to be the most common cancer of the foot in people
Soft tissue sarcoma symptoms can include:
- a noticeable mass anywhere in your foot
- pain
- swelling
- numbness or tingling if the tumor compresses nerves
- skin ulcers
- limping that occurs without a hip or knee cause (typically a symptom in children)
Synovial sarcoma tends to appear as a
An extremely rare soft tissue sarcoma called clear cell carcinoma occurs in the foot or ankle about
The majority of soft tissue sarcomas occur spontaneously, meaning they have no known cause. Some genetic conditions link with a higher chance of developing sarcoma. They include:
- neurofibromatosis type 1 (von Recklinghausen’s disease)
- Li-Fraumeni syndrome
- familial adenomatous polyposis
The main tests for soft tissue sarcomas are a biopsy and imaging. Doctors can take a biopsy using a hollow needle to remove a small piece of tissue.
Doctors usually
Experts generally consider MRI the best imaging technique for trunk and extremity soft tissue sarcomas.
Doctors use
- surgery
- radiation therapy
- targeted therapy
- immunotherapy
- chemotherapy
The main treatment for many types of soft tissue sarcoma of the foot, such as chondrosarcoma, is surgery with or without radiation therapy.
Doctors traditionally used amputation, but these days, doctors often try to spare as much of the foot as possible.
Research
- previous radiation therapy
- chronic lymphedema (blockage of lymph vessels)
- environmental exposure to:
- thorotrast
- polyvinyl chloride
Cancerous tumors of the foot tend to
Experts think the outlook of soft tissue sarcoma in the foot is similar to that in other parts of your body.
The
| Stage | 5-year relative survival rate |
|---|---|
| Localized | 81% |
| Regional | 56% |
| Distant | 15% |
| All stages | 65% |
A type of sarcoma called rhabdomyosarcoma tends to have a
Chondrosarcoma tends to be less aggressive in the foot than other body parts, especially when it develops in your forefoot.
In the small 2016 study, soft tissue sarcomas more than 3 centimeters (1.2 inches) across were associated with a less favorable outlook.
Learn more about soft tissue sarcoma survival rates.
Here are some frequently asked questions people have about soft tissue sarcomas of the foot.
What other conditions can cause a lump in your foot?
Conditions that can cause similar symptoms as soft tissue sarcoma include:
When should I get medical attention if I think I have soft tissue sarcoma?
Getting medical attention as soon as possible is critical if you develop a new lump. A biopsy is the only way to know if the lump is cancer.
Can numbness and tingling in my foot be a sign of soft tissue sarcoma?
Sarcoma can cause numbness and tingling if the tumor compresses a nerve. However, there are more likely causes of these symptoms.
Soft tissue sarcoma of the foot is extremely rare. Most tumors that develop in the foot are noncancerous.
Soft tissue sarcoma’s rarity can delay getting this type of diagnosis. Contacting your doctor as soon as you develop new pain or a lump in your foot can increase your chance of a good outlook.