id author title date pages extension mime words sentences flesch summary cache txt cord-258484-jwgtjisx Mehrabi, Sara Pitfalls of Computed Tomography in the Coronavirus 2019 (COVID-19) Era: A New Perspective on Ground-Glass Opacities 2020-05-16 .txt text/plain 2983 167 38 Aim To study ground-glass opacities (GGO) not only from the coronavirus 2019 (COVID-19) pneumonia" perspective but also as a radiological presentation of other pathologies with comparable features. In the presence of typical imaging features (e.g. GGO and consolidation), the radiologist should focus on the pandemic and manage a suspect patient as COVID-19 positive until proven to be negative. Even if chest CT can detect lung anomalies before symptom onset, the findings follow a temporal pattern and are consistent with clinicopathological development: the first and most common feature is ground-glass opacity (GGO), which represents early alveolar damage, with bilateral subpleural distribution in the lower lobes; then, areas of consolidation appear and tend to coalesce on the underlying GGOs. Later, in this background, the "crazy paving" pattern can be seen, with thickened interlobular septa and intralobular lines. COVID-19 pneumonia was suspected because of the CT report and clinical presentation so an RT-PCR assay by nasopharyngeal swab was performed; interestingly, the virus was not detected in any patient. ./cache/cord-258484-jwgtjisx.txt ./txt/cord-258484-jwgtjisx.txt