Pseudomonas aeruginosa as an unusual cause of cavitating lung lesion.

A 31-year-old woman with systemic lupus erythematosus presented to the emergency department with cough for 1 week. Chest radiograph demonstrated cavitating lesion in the right upper zone with surrounding ground-glass change. Blood culture results from the day of hospital presentation grew Pseudomonas aeruginosaP. aeruginosaP. aeruginosaP. aeruginosa