Klebsiella pneumoniae, classified as facultative enteric Gram-negative rods, was previously believed to cause few diseases. Recently, however,
K.pneumoniaehas been frequently isolated from infections occurring in immunocompromised hosts. We describe a case of liver abscess and maxillary sinusitis due to
K. pneumoniaein a previously healthy 30-year-old man. Both infections were found concurrently, and only
K. pneumoniaewas isolated. Pyogenic liver abscess is often associated with distant infectious lesions, such as endophthalmitis, osteomyelitis, pulmonary abscess, or purulent meningitis; however, there has been no previous report describing an association with maxillary sinusitis.
Pulsed-field gel electrophoresis (PFGE) suggested similarities between both isolated strains of
K. pneumoniae.
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