Lung nodules are clusters of cells found during an x-ray or CT scan that appear as more dense or white spots in the lungs.

A pulmonary embolism is a blood clot that blocks the lung’s arteries. Blood clots do not show on chest X-rays. However, these X-rays may help doctors rule out other health conditions with similar ...

Routine chest X-rays may not be as harmless as perceived, warns neurologist Dr. Sudhir Kumar. While a single scan's radiation ...