What is the difference between sarcoma and carcinoma cancers?
According to my Medical dictionary these are the definitions: Carcinoma- A malignant epithelial neoplasm that tends to invade surrounding tissue and to metastasize to distant regions of the body. Carcinomas develop most frequently in the skin, large intestine, lungs, stomach, prostate, cervix, or breast. The tumor is firm, irregular, and nodular, with a well-defined border. Microscopically, the cells are characterized by anaplasia, abnormal size and shape, disproportionately large nuclei, and clumps of nuclear chromatin. Sarcoma- A malignant neoplasm of the soft tissues arising in fibrous, fatty, muscular, synovial, vascular, or neural tissue, usually first manifested as a painless swelling. About 40% of sarcomas occur in the lower extremities, 20% in the upper extremities, 20% in the trunk, and the re3st in the head, neck, or retro-perineum. The tumor is composed o cells in a connective tissue matrix and may be highly invasive. Trauma probably does not play a role in the cause, but sa