The term
oncology literally means a branch of science that deals with tumours and cancers. The word “onco” means bulk, mass, or
tumor while “-logy” means study. Each of the
cells of the body have a tightly regulated system that controls their growth, maturity, reproduction and eventual death.
Cancer begins when
cells in a part of the body start to grow out of control. There are many kinds of cancer, but they all start because of out-of-control growth of abnormal cells. Today, millions of people are living with
cancer or have had cancer.
Cancer is the second leading cause of death in the United States. About one-half of all men and one-third of all women in the US will develop
cancer during their lifetimes. Some of the earliest evidence of
cancer is found among fossilized bone tumors, human mummies in ancient Egypt, and ancient manuscripts. Abnormalities suggestive of the bone
cancer called osteosarcoma have been seen in mummies.
Relevant Topics in Medical Sciences
