Small cell lung cancer (SCLC) is a highly malignant cancer that originates in the cells of the lung. It is characterized by its aggressive nature and rapid growth. Unlike non-small cell lung cancer (NSCLC), SCLC is less common but more lethal. SCLC cells are typically smaller in size and have a higher tendency to spread quickly to other parts of the body, including the lymph nodes, liver, bones, adrenal glands, and brain.
