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Because soft tissue is relatively elastic, tumors can grow rather large, pushing aside normal tissue, before they are felt or cause any problems. The first noticeable symptom is usually a painless lump or swelling. As the tumor grows, it may cause other symptoms, such as pain or soreness, as it presses against nearby nerves and muscles.
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.
In sarcomas, lumps are painless and typically found in the arms, legs, chest or abdomen. "Atlas has had masses in his left arm, next to his heart, in his lower back directly next to his spine, and ...
[8] [11] These tumors usually are not painful and if located superficially, readily apparent; they can also cause extensive edema (i.e. swelling due to the local accumulation of fluid) in involved areas such as the thigh (see adjacent figure) due to their invasion into the blood and/or lymphatic vessels draining the tumor's site. Deep-seated ...
Chondrosarcoma is a bone sarcoma, a primary cancer composed of cells derived from transformed cells that produce cartilage. [1] A chondrosarcoma is a member of a category of tumors of bone and soft tissue known as sarcomas. About 30% of bone sarcomas are chondrosarcomas. [2] It is resistant to chemotherapy and radiotherapy. Unlike other primary ...
Primary synovial sarcomas are most common in the soft tissue near the large joints of the arm and leg but have been documented in most human tissues and organs, including the brain, prostate, and heart. Synovial sarcoma occurs in about 1–2 per 1,000,000 people a year. [4]
ARMS tumors resemble the alveolar tissue in the lungs. [1] Tumor location varies from patient to patient, but is commonly found in the head and neck region, male and female urogenital tracts, the torso, and extremities. [2] Two fusion proteins can be associated with ARMS, but are not necessary: PAX3-FKHR (now known as FOXO1) [3] [4] and PAX7-FKHR.
Ewing sarcoma is a type of pediatric cancer [5] that forms in bone or soft tissue. [1] Symptoms may include swelling and pain at the site of the tumor, fever, and a bone fracture. [2] The most common areas where it begins are the legs, pelvis, and chest wall. [4]
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