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Description of the system for grading the severity of pulmonary edema
| Pulmonary edema severity grading | Description of the consolidation |
|---|---|
| I (no consolidation) | Normal image or redistribution or interstitial pattern change |
| II (alveolar pattern) | Patchy consolidations without involvement of an entire lobe |
| III (lobar pattern) | Any consolidation involving more than one entire lobe |
| IV (entire lung) | Total white-out of more than one entire lung |
