Serrated Marine Nose - 6-week history of swelling and ulcerations with a hemorrhagic crust over her nose (Panels A and B). Serratia liquefaciens grew in biopsy samples obtained from the ulcers. A 3-week course of ciprofloxacin resulted in partial improvement (Panels C and D). Five weeks later, histologic examination revealed caseating granulomas, and Mycobacterium marinum #Clinical #Serrated #Marine #Nose #Serratia #Liquefaciens #SerratiaLiquefaciens #MycobacteriumMarinum #NEJM