Immune checkpoint inhibitor therapy related pneumonitis

Immune checkpoint inhibitor therapy-related pneumonitis is one of the complications that can occur in the setting of immune checkpoint inhibitor therapy.

Radiographic features

CT

Variable and several distinct radiographic patterns of pneumonitis have been described which include :

• organizing pneumonia pattern
• non-specific interstitial pneumonia (NSIP) pattern
• hypersensitivity pneumonitis pattern
• acute interstitial pneumonia / acute respiratory distress syndrome pattern
• bronchiolitis
• radiation recall pneumonitis