Hi,
If a lung nodule was seen in the chest x-ray, a CT scan would indeed be very helpful to determine its nature. Most
lung nodules or small masses of tissue in the
lung are benign and are due to infection, hamartoma, lung cysts, and vascular abnormalities. These are monitored for a certain period of time to ensure that there are no changes in size, shape or appearance. For larger lung nodules, further evaluation may need to be done to rule out malignancy.