Brain images of Klebsiella pneumoniae

(Panels A and B) A 64-year-old diabetic woman with K. pneumoniae liver abscess and meningitis developed relapsing K. pneumoniae meningitis one month later. CT (panel A) and MRI (panel B) of the brain demonstrate mild internal hydrocephalus and ventriculitis.
(Panels C and D) A 62-year-old diabetic man with fever, vomiting, altered mental status and seizure. CT of the brain demonstrates obliteration of right-sided cortical sulci (panel C). MRI of the brain demonstrates right subdural effusion (panel D, arrows). Culture from subdural empyema obtained at surgery grew K. pneumoniae.