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Fig. 4 | Military Medical Research

Fig. 4

From: A practical approach to imaging characteristics and standardized reporting of COVID-19: a radiologic review

Fig. 4

Serial images showing the expected evolution of the CT findings over time. a. CT exam dated March 17, 2020 shows viral parenchymal infiltration starting as a very low-density millimeter-sized ground-glass density in the central right lower lobe. b. CT exam dated March 23, 2020 shows interval progression into widespread ground-glass densities and crazy-paving pattern with peripheral and subpleural domination in both lower and upper lobes of the lung. c. CT exam dated March 26, 2020 shows interval evolution of the ground-glass and crazy-paving areas into consolidation, while some regressed directly without sequelae. d. CT exam dated April 2, 2020 during clinical recovery phase shows lesions regressed in the form of fibrotic bands and subpleural streaks

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