Table 3

Portal of entry in relation to microbial findings, location and source of brain abscess
Portal of entry
Contiguous Haematogenous Postneurosurgical/trauma Unknown Total
N=37 N=29 N=9 N=27 102
Microbe
Streptococcus species 19 16 1 19 55
Staphylococci 4 5 5 2 16
Gram-negative bacteria 5 1 1 1 8
Anaerobic bacteria 6 3 2 3 14
Nocardia 1 1 0 0 2
Other 1 1 0 2 4
Negative culture 5 3 1 5 14
Abscess Location
Frontal 15 8 6 8 37
Parietal 5 11 3 8 27
Temporal 8 4 0 2 14
Occipital 3 3 0 3 9
Pontine 0 3 0 0 3
Cerebellar 5 0 0 3 8
Basal ganglia 1 1 0 2 4
Multiple abscesses 3 11 3 4 21
Source of abscess
Sinusitis 13 13
Dental 15 15
Otogenic 9 9
Lung 9 9
Endocarditis/congenital heart disease 4 4
Abdominal/urinary infection 4 4
Other 12 11
Postneurosurgical/trauma 9 9
Unknown 27 27

Helweg-Larsen et al.

Helweg-Larsen et al. BMC Infectious Diseases 2012 12:332   doi:10.1186/1471-2334-12-332

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