Soft-tissue sarcoma
A soft-tissue sarcoma (STS) is a malignant tumor, a type of cancer, that develops in soft tissue. A soft-tissue sarcoma is often a painless mass that grows slowly over months or years. They may be superficial or deep-seated. Any such unexplained mass must be diagnosed by biopsy. Treatment may include surgery, radiotherapy, chemotherapy, and targeted drug therapy. Bone sarcomas are the other class of sarcomas.
| Soft-tissue sarcoma | |
|---|---|
| Undifferentiated soft tissue sarcoma in left lung of young child | |
| Specialty | Oncology |
There are many different types, many of which are rarely found. The World Health Organization lists more than fifty subtypes.
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