CTICasesBlastomycosis
Imaging findings
CT chest in a 23-year-old forestry worker shows a dense, cavitating lobar consolidation in the right lung with small satellite nodules. There is a conspicuous absence of pleural effusion or significant hilar lymphadenopathy. BA L yeast and urine antigen were positive.
Key takeaways
Blastomycosis (Blastomyces dermatitidis) is endemic to the Great Lakes region and Mississippi/Ohio river valleys. It typically presents in outdoor workers as a dense lobar consolidation with cavitation, mimicking bacterial pneumonia or lung cancer. Absence of pleural effusion is common.
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