There are two different types of SCLC: Most SCLCs are of the oat
cell type. Cancer - lung - small cell; Small cell lung cancer;
SCLC About 15% of all lung cancer cases are SCLC. Small cell
lung cancer is slightly more common in men than women. Almost
all cases of SCLC are due to cigarette smoking. SCLC is rare in
people who have never smoked. SCLC is the most aggressive form
of lung cancer. It usually starts in the breathing tubes
(bronchi) in the center of the chest. Although the cancer cells
are small, they grow very quickly and create large tumors. These
tumors often spread rapidly (metastasize) to other parts of the
body, including the brain, liver, and bone. Other symptoms that
may occur with this disease: Your health care provider will
perform a physical exam and ask questions about your medical
history. You will be asked whether you smoke, and if so, how
much and for how long you have smoked. When listening to your
chest with a stethoscope, your health care provider can
sometimes hear fluid around the