PMC9371804_01
The sequences of CT thorax at day 10 of COVID-19 illness (a-c) showed moderate GGO with organizing pneumonia in the background of emphysematous lung (blue arrow). Second CT thorax at day 42 post COVID-19 infection (d-f) showed worsening bilateral ground glass opacity with reticulations and crazy paving pattern (red arrow) most prominent at bilateral lower lobes. There is also reduction in lung volume with displaced fissures (yellow arrow). Third CT thorax at 5 months post COVID-19 infection (g-i) showed significant improvement of GGO with residual reticulations in apical region and lung bases.
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fig1
A computed tomography pulmonary angiography (CTPA) thorax on day 10 of illness revealed moderate organizing pneumonia with a background of emphysematous changes and no pulmonary embolism (Figures 1(a), 1(b), and 1(c)). Otherwise, there was no organizing pneumonia or pulmonary embolism (Figures 1(d), 1(e), and 1(f)). A follow-up at 3 months post COVID-19 infection showed improvement of clinical symptoms and radiological resolution of crazy paving pattern (Figures 1(g), 1(h), and 1(i)).