Lung nodules are small growths in your lungs, less than 30 millimeters in diameter. Many nodules aren’t cancerous, but the risk becomes higher with increased size. A lung nodule is an irregular growth ...

A solitary pulmonary nodule (SPN) is an isolated lung growth surrounded by normal tissue. Most SPNs are benign (not cancerous) when they're diagnosed. However, some nodules that enlarge and change ...