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  • Title: CT for asbestosis: value and limitations.
    Author: Lynch DA.
    Journal: AJR Am J Roentgenol; 1995 Jan; 164(1):69-71. PubMed ID: 7998571.
    Abstract:
    CT is more sensitive than clinical evaluation for the detection of asbestosis but is inevitably less sensitive and less specific than pathologic evaluation. For the asbestos-exposed individual, CT is useful for the evaluation of suspected lung masses, particularly rounded atelectasis [15], for identifying pleural plaques, and for confirming unequivocal asbestosis (grade 2 or grade 3 [8]). CT also will identify and quantify emphysema as a cause of physiologic impairment. Because clinicians commonly use CT to resolve clinical uncertainties, radiologists often feel pressured to categorize disease as unequivocally present or absent. Gamsu et al. [8] show that the borderline between normal and abnormal is not always sharply defined. In the absence of pathologic proof, the diagnosis of asbestosis must be based on a thoughtful evaluation of the likelihood of asbestosis by use of all available clinical, physiologic, and radiologic information. The scoring systems used by Gamsu et al. [8] offer a practical approach to defining the likelihood of asbestosis based on CT appearances.
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