High CT attenuation values of a benign pulmonary nodule.
Computed tomography (CT) is thought to be a reliable predictor of the benignancy of pulmonary nodules when high attenuation values can be demonstrated. However, the cause of increased attenuation has not been proven. A pulmonary nodule evaluated initially by CT and subsequently followed for 4 years has developed central calcification by conventional tomography. This observation supports the contention that elevated CT attenuation values are the result of microscopic calcification.
D000328:Adult; D002114:Calcinosis / Q000000981:diagnostic imaging; D005260:Female; D005500:Follow-Up Studies; D006099:Granuloma / Q000000981:diagnostic imaging*; D006801:Humans; D008171:Lung Diseases / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed