Search results
Results from the WOW.Com Content Network
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.
Kaposi sarcoma, a rare cancer of the cells that line blood vessels in the skin and mucous membranes, is caused by human herpesvirus 8. Kaposi sarcoma often occurs in patients with acquired immune deficiency syndrome. Kaposi sarcoma, however, has different characteristics from typical soft-tissue sarcomas and is treated differently. [8]
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 ]
Kaposi's sarcoma (KS) is a type of cancer that can form masses on the skin, in lymph nodes, in the mouth, or in other organs. [ 4 ] [ 6 ] The skin lesions are usually painless, purple and may be flat or raised.
Lung cancer is a large and exceptionally heterogeneous family of malignancies. [4] Over 50 different histological variants are explicitly recognized within the 2004 revision of the World Health Organization (WHO) typing system ("WHO-2004"), currently the most widely used lung cancer classification scheme. [ 1 ]
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 ...
Four main hypotheses have been proposed for the cellular origins of carcinosarcoma, based largely on the pathology of the disease. [1] [3] First, the collision tumor hypothesis, which proposes the collision of two independent tumors resulting in a single neoplasm, based on the observation that skin cancers and superficial malignant fibrous histiocytomas are commonly seen in patients with sun ...
Askin's tumor is a rare, primitive neuroectodermal tumor which arises from the soft tissues of the chest wall, particularly of the paravertebral region. [1] [2] It was first described by Askin et al. in 1979. [3] Askin's tumor is now recognized as part of the Ewing's sarcoma family of tumors. [4]