Isolated IgG4-related lung disease: a case report

Jiayuan Pu1, Panpan Gou1, Wanchun Qiu1

  • 1Pulmonary and Critical Care Medicine, The First Hospital of Lanzhou University, Lanzhou, China.

AME Case Reports
|August 13, 2026
PubMed
Summary

This case report details a patient with IgG4-related lung disease (IgG4-RLD) presenting with pneumonia-like symptoms unresponsive to antibiotics. Diagnosis was confirmed via biopsy and elevated serum IgG4, leading to successful immunosuppressive treatment.