what is small cell.lung cancer
Small cell lung cancer. Small cell lung cancer, which is often referred to as oat cell lung cancer because the cells resemble oats under the microscope, begins in the lung tissue. Unlike most non-small cell lung cancer, it often spreads quickly.mall cell lung cancer. Small cell lung cancer, which is often referred to as oat cell lung cancer because the cells resemble oats under the microscope, begins in the lung tissue. Unlike most non-small cell lung cancer, it often spreads quickly.