Massive eosinophilic pleural effusion preceding vasculitic symptoms in Churg-Strauss syndrome.

We report a case of Churg-Strauss syndrome (CSS) presenting as a massive pleural effusion. A 52-year-old asthmatic Japanese woman presented with progressive dyspnea caused by an eosinophilic pleural effusion (EPE). She also had chronic sinusitis, skin lesions and blood eosinophilia, but no antineutrophil cytoplasmic antibodies.