A sarcoma is a malignant growth that emerges from changed cells of mesenchymal (connective tissue) birthplace. Connective tissue is a wide term that incorporates bone, ligament, fat, vascular, or hematopoietic tissues, and sarcomas can emerge in any of these kinds of tissues. Accordingly, there are numerous subtypes of sarcoma, which are characterized dependent on the particular tissue and sort of cell from which the tumor originates.Sarcomas are essential connective tissue tumors, implying that they emerge in connective tissues. This is as opposed to optional (or "metastatic") connective tissue tumors, which happen when a malignant growth from somewhere else in the body, (for example, the lungs, bosom tissue or prostate) spreads to the connective tissue. The word sarcoma is gotten from the Greek σάρξ sarx signifying "substance".

Side effects of bone sarcomas regularly incorporate bone torment, particularly around evening time, and expanding around the site of the tumor. Manifestations of delicate tissue sarcomas differ, however regularly present as firm, effortless bumps or knobs. Gastrointestinal stromal tumors (a subtype of delicate tissue sarcoma) regularly are asymptomatic, yet can be related with dubious grievances of stomach torment, a sentiment of completion, or different indications of intestinal obstacle.