Squamous cell carcinoma lung cancer,gross specimen. Squamous cell carcinoma of the lung is a non-small cell lung cancer,so-called because of the relative size of the irregularly-shaped,flat epithelial cells under the microscope. It may be treated surgically before it has spread,but has the potential to metastasize rapidly to the bone,adrenal glands,liver,small intestine and brain. It is a very common lung cancer,making up between 35% and 40% of all lung cancers in the UK. Lung cancer is the most lethal of all cancers worldwide,responsible for 1.2 million deaths annually. Smoking is a significant risk factor |