Soft tissue sarcomas are a heterogeneous group of malignant tumors of mesenchymal origin (sarcoma) that originate from the soft tissues rather than bone. They are classified on the basis of tissue seen on histology. The more common sarcomas in the adult and pediatric populations are listed below.
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Adult soft tissue sarcomas
- undifferentiated pleomorphic sarcoma (malignant fibrous histiocytoma): commonest type of soft tissue sarcoma
- liposarcoma: second most common type
- rhabdomyosarcoma
- fibrosarcoma
- dermatofibrosarcoma
- leiomyosarcoma
- haemangiosarcoma
- Kaposi sarcoma
- lymphangiosarcoma
- synovial sarcoma
- malignant peripheral nerve sheath tumor
- extraskeletal chondrosarcoma
- extraskeletal osteosarcoma
- alveolar soft-part sarcoma: young adult
Pediatric soft tissue sarcomas
- rhabdomyosarcoma
- embryonal sarcoma
- alveolar soft-part sarcoma
- leiomyosarcoma
- fibrosarcoma
- malignant fibrous histiocytoma
- dermatofibrosarcoma
- liposarcoma
- infantile hemangiopericytoma
- synovial sarcoma
- malignant peripheral nerve sheath tumor
- extraskeletal myxoid chondrosarcoma
- extraskeletal mesenchymal sarcoma