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Isolated pauciimmune pulmonary capillaritis is a small vessel vasculitis restricted to the lungs that may induce diffuse alveolar hemorrhage with dyspnea, anemia, chest pain, hemoptysis, bilateral and diffuse alveolar infiltrates at chest X-rays, without any underlying systemic disease. ANCA are frequently positive but could be negative.
Estimated prevalence: Unknown (Unknown prevalence).
No clinical trials have been registered for isolated pulmonary capillaritis.
2 publications have been identified in PubMed for isolated pulmonary capillaritis. Research spans Case Report / Case Series (100%).
Jung YJ (2026). [PMID: 41799408](https://pubmed.ncbi.nlm.nih.gov/41799408/). *Respiratory medicine case reports*. [Case Report / Case Series]
El Mawla Z (2024). [PMID: 39421433](https://pubmed.ncbi.nlm.nih.gov/39421433/). *Respirology case reports*. [Case Report / Case Series]
Data assembled from 3 of 12 sources · Last updated Sep 18, 2026, 5:58 PM UTC
European rare disease database
Genetic and Rare Diseases Info Center