Lung Nodules

A pulmonary nodule is spot or lesion found on the lungs on a CT scan or chest x-ray. Most nodules found are benign (noncancerous). These are usually caused by old scars or infections such as tuberculosis. A malignant (cancerous) nodule is usually caused from lung cancer. Depending on your symptoms or the size and shape of the nodule, your doctor may want to just repeat chest scans and watch it to see if it becomes larger over time or they may choose to biopsy the nodule.