Table 3. Radiological characteristics.
COP‐like pattern consists of peribronchial or peripheral consolidation and/or the reversed halo sign.
DAD‐like pattern consisted of diffuse ground glass or consolidative opacities.
HP‐pattern consisted of too numerous to count tiny centrilobular ground glass nodules with an upper lobe predominance.
Severity Classification. According to lung volume involved: mild <25%, moderate 25%–50%, severe >50%.
Abbreviations: COP, cryptogenic organizing pneumonia; DAD, diffuse alveolar damage or diffuse airspace disease; HP, hypersensitivity pneumonitis; Ipi‐nivo, ipilimumab and nivolumab combination; PD‐1, programmed cell death 1.