Table 2 Classification according to the American Society of Radiology
From: Tomographic findings in patients with COVID-19 according to evolution of the disease
Category | Description |
|---|---|
Typical findings | Peripheral and bilateral ground glass opacities accompanied or not by consolidations or “crazy cobblestone” pattern; round morphology multifocal ground glass opacities with or without consolidations or “crazy cobblestone” pattern; and reverse halo sign. |
Indeterminate findings | Absence of typical findings along with multifocal, diffuse, perihilar, unilateral, non-peripheral ground glass opacities, lacking rounded morphology with or without associated consolidations. |
Atypical findings | Absence of typical and indeterminate findings plus segmental consolidations or those that affect an isolated single lobe without ground glass opacities; discrete small nodules (centrilobular or “budding tree” pattern); and pulmonary cavitation or mild increase in thickness of the septum with pleural effusion. |
Unrelated findings | Findings not related to COVID-19. |