Concentrically expanded reversed halo sign caused by nivolumab-related pneumonia

Respirol Case Rep. 2024 May 9;12(5):e01352. doi: 10.1002/rcr2.1352. eCollection 2024 May.

Authors

Hirokazu Tokuyasu¹, Yoshitoshi Sato², Yuriko Sueda¹, Hiromitsu Sakai¹, Chika Esumi³, Akira Yamasaki⁴

Affiliations

¹ Department of Respiratory Medicine Matsue Red Cross Hospital Matsue Japan.
² Department of Surgery Matsue Red Cross Hospital Matsue Japan.
³ Department of Pathology Matsue Red Cross Hospital Matsue Japan.
⁴ Division of Respiratory Medicine and Rheumatology, Department of Multidisciplinary Internal Medicine, School of Medicine, Faculty of Medicine Tottori University Yonago Japan.

Abstract

Among immune-related adverse events, pneumonitis is relatively uncommon, and nivolumab-related pneumonitis may present with a reversed halo sign.

Keywords: chemotherapy; nivolumab; oesophageal squamous cell carcinoma; organizing pneumonia; reversed halo sign.

© 2024 The Authors. Respirology Case Reports published by John Wiley & Sons Australia, Ltd on behalf of The Asian Pacific Society of Respirology.

Publication types

Case Reports