3. Can lung tumors be benign?Yes, but benign lung tumors are very uncommon.
4. Is damage from smoking reversible?Usually, the body cleans the lungs after a person quits smoking, but some damage is permanent. It depends on the intensity and the time period of smoking.
5. Does a negative chest radiograph surely mean that I don’t have lung cancer?No, chest radiographs sometimes fail to detect lung cancers. Tumors can appear as small shadows at the back of the ribs and can be difficult to identify.