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Term of the day: Mosaic Attenuation

"Mosaic attenuation is a CT pattern defined by the Fleischner Society glossary as a “patchwork of regions of differing attenuation seen on CT of the lungs.” It is characterized by heterogeneous lung attenuation with well-defined borders corresponding to the secondary pulmonary lobules. The name derives from mosaic artwork, which consists of variously colored glass or stone tiles inlaid in a contrasting pattern. The three major pathologic causes of this pattern are pulmonary vascular, small airways, and primary parenchymal disease. "

Further reading and reference-AJR December 2011 vol. 197 no. 6 W970-W977
Term of the day: Mosaic Attenuation Reviewed by Sumer Sethi on Wednesday, November 23, 2011 Rating: 5

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