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 | |||