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  • Title: Ground-glass opacity of the lung parenchyma: a guide to analysis with high-resolution CT.
    Author: Engeler CE, Tashjian JH, Trenkner SW, Walsh JW.
    Journal: AJR Am J Roentgenol; 1993 Feb; 160(2):249-51. PubMed ID: 8424326.
    Abstract:
    Ground-glass opacity is a frequent but nonspecific finding on high-resolution CT scans of the lung parenchyma. The underlying abnormality is diverse; any condition that decreases the air content of the lung parenchyma without totally obliterating the alveoli can produce ground-glass opacity. These processes are not visible on high-resolution CT scans. However, in specific clinical settings, the information provided by high-resolution CT is considerable when the anatomic distribution and associated structural changes to the lung parenchyma are analyzed. This pictorial essay illustrates the pathologic basis of ground-glass opacity and provides a guide to the differential diagnosis of the disorders that can produce this appearance.
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