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| Sarcoma | |
|---|---|
| Other names | Sarcomas, sarcomata |
 | |
| Optical coherence tomography (OCT) image of a sarcoma | |
| Specialty | Oncology |
A sarcoma is a malignant tumor, a type of cancer that arises from cells of mesenchymal (connective tissue) origin.[1][2] Connective tissue is a broad term that includes bone, cartilage, muscle, fat, vascular, or other structural tissues, and sarcomas can arise in any of these types of tissues.[2][3] As a result, there are many subtypes of sarcoma, which are classified based on the specific tissue and type of cell from which the tumor originates.[4]
Sarcomas are primary connective tissue tumors, meaning that they arise in connective tissues.[2] This is in contrast to secondary (or "metastatic") connective tissue tumors, which occur when a cancer from elsewhere in the body (such as the lungs, breast tissue or prostate) spreads to the connective tissue.[5] Sarcomas are one of five different types of cancer, classified by the cell type from which they originate.[6] The word sarcoma is derived from the Greek σάρκωμα sarkōma 'fleshy excrescence or substance', itself from σάρξ sarx meaning 'flesh'.[7][8][9]
- ^ Yang J, Ren Z, Du X, Hao M, Zhou W (27 October 2014). "The role of mesenchymal stem/progenitor cells in sarcoma: update and dispute". Stem Cell Investigation. 1: 18. doi:10.3978/j.issn.2306-9759.2014.10.01. PMC 4923508. PMID 27358864.
- ^ a b c Cite error: The named reference
:1was invoked but never defined (see the help page). - ^ Cite error: The named reference
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:0was invoked but never defined (see the help page). - ^ "Metastatic Cancer". National Cancer Institute. 12 May 2015. Retrieved 22 March 2019.
- ^ "Defining Cancer". National Cancer Institute. 17 September 2007. Retrieved 10 June 2014.
- ^ σάρκωμα, σάρξ. Liddell, Henry George; Scott, Robert; A Greek–English Lexicon at the Perseus Project.
- ^ "Definition of SARCOMA". www.merriam-webster.com. Retrieved 22 March 2019.
- ^ Harper D. "sarcoma". Online Etymology Dictionary.