%0 Case Reports %T Concentrically expanded reversed halo sign caused by nivolumab-related pneumonia. %A Tokuyasu H %A Sato Y %A Sueda Y %A Sakai H %A Esumi C %A Yamasaki A %J Respirol Case Rep %V 12 %N 5 %D 2024 May %M 38736507 暂无%R 10.1002/rcr2.1352 %X Among immune-related adverse events, pneumonitis is relatively uncommon, and nivolumab-related pneumonitis may present with a reversed halo sign.