What Are the Causes of a Spot on a Lung?
The high content of air in the lungs gives them a nearly transparent appearance on chest X-rays and CT scans. In contrast, areas of solid tissue within the lungs appear as white spots with these imaging techniques. A spot on the lung is an abnormal finding, which requires further evaluation to determine the cause of the lung mass. Inflammatory reactions, congenital malformations and cancerous or noncancerous growths may cause radiographic lung spots. Distinguishing cancerous from noncancerous masses remains the utmost concern.
