CTICasesEosinophilic Granulomatosis with Polyangiitis (Churg-Strauss)
Imaging findings
Chest radiograph and CT show patchy, bilateral ground-glass opacities and areas of peripheral consolidation, prominently involving the right upper lobe. CT findings also include bronchial wall thickening, bronchiectasis, centrilobular tree-in-bud nodules, and larger confluent consolidative regions that rapidly evolved from a nodular organizing pneumonia-like pattern over a five-week period.
Key takeaways
Eosinophilic granulomatosis with polyangiitis is a systemic vasculitis characterized by asthma, peripheral eosinophilia, and tissue infiltration by eosinophils. The pulmonary manifestations typically mirror eosinophilic pneumonia, presenting with migratory, non-segmental consolidation and ground-glass opacities, frequently accompanied by small airway abnormalities like tree-in-bud nodularity and bronchial wall thickening.
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