The differential diagnosis of pulmonary blastomycosis using case vignettes: a Wisconsin Network for Health Research (WiNHR) study.

Purpose: Pulmonary blastomycosis is an uncommon but serious fungal infection endemic in Wisconsin. Clinician awareness of the protean presentations of this disease may reduce diagnostic delay. This study addressed the diagnostic accuracy of physicians responding to case vignettes of pulmonary blastomycosis and the primary care differential diagnosis of this disease.