HSC 3147 Chapter Notes - Chapter 18: Cancer, Benign Tumor, Sarcoma
19 Feb 2018
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Neoplasm (aka tumor): a new or unusual growth of tissue in plants or animals: named for site of origin, may be benign or malignant. Benign neoplasms are named by the site plus the su x -oma: note: some malignant tumors also end with -oma. Malignant neoplasms are characterized by the names ending in sarcoma. Nevertheless, many healthy cells die in the course of chemotherapy. Cancer is a mass of cells with no useful function: not a single disease. With uncontrolled division of abnormal cells and with cancer cells reproducing faster than normal cells, more than 100 di erent types of cancer have been identi ed: can cause dysfunction and structural alterations in surrounding tissues. As the tumor increases in size, normal cells lack the necessary nutrition or blood supply and thus decrease in number: their alteration causes loss of normal body functions, especially in the late stages of the disease.
