Healthy lungs are light pink, while a smoker’s lungs appear dark and mottled due to inhaled tar. the texture of the two also differs, with damaged lungs being much harder and more brittle. Lung zones. assess the lungs by comparing the upper, middle and lower lung zones on the left and right. asymmetry of lung density is represented as either abnormal whiteness (increased density), or abnormal blackness (decreased density). once you have spotted vs lung x healthy ray unhealthy asymmetry, the next step is to decide which side is abnormal. Chestx-ray is a type of x-ray commonly used to detect abnormalities in the lungs. a chest x-ray can also detect some abnormalities in the heart, aorta, and the bones of the thoracic area. a chest x-ray can be used to define abnormalities of the lungs such as excessive fluid (fluid overload or pulmonary edema), fluid around the lung (pleural. Visitors view x-rays showing (l to r) healthy lungs and lungs infected with tb. press view of 'open for disco...