Brain abscess following intracerebral haemorrhage.

We report two cases of brain abscess, which developed at the site of an intracerebral haemorrhage (ICH) in a 75-year-old man and a 32-year-old-man. The patients recovered after surgical treatment and systemic antibiotic therapy. The route of infection could not be detected in either case. The literature contains only 13 reported cases of brain abscess as a complication of ICH. Although the interval from initial ICH to abscess formation ranged from 4 to 20 weeks, almost all patients had episodes of high fever, indicating the presence of systemic infection and bacterial seeding, 0-14 days after the onset of their ICH. Therefore, abscess formation appears to be caused by haematogenous seeding of infection in patients with ICH. Abscess formation should be considered when a patient deteriorates clinically with a febrile episode after an ICH.