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Updated: Aug 17, 2026

Microbiological Rapid On-Site Evaluation for Pulmonary Infectious Diseases
Published on: March 1, 2024
[IgG4 associated nephritis and recurrent hemoptysis: Case report]
Daniel Erlij1, Ángela Rivera1, Juan Carlos Maya1
1Sección de Reumatología, Servicio de Medicina Hospital del Salvador, Universidad de Chile, Santiago, Chile.
Abstract:
IgG4 disease is a multi-systemic condition involving pancreas, salivary glands and lymph nodes. Less frequently, it causes interstitial nephritis and involves the lungs. We report a 58 years old male with a four years history of hemoptysis and renal dysfunction characterized by hematuria and proteinuria, responsive to steroidal therapy. The renal biopsy established the diagnosis of IgG4 associated interstitial nephritis. Lung involvement was considered secondary to the same systemic disease.