Summary of the metabolites observed in the 3 types of brain abscesses studied
| Type of Abscess | Metabolite* | ||||||
|---|---|---|---|---|---|---|---|
| Amino Acid (0.9 ppm) | Lipid (1.3 ppm) | Lactate (1.3 ppm) | Lipid + Lactate | Acetate (1.9 ppm) | Succinate (2.4 ppm) | (3.6–3.8 ppm)† | |
| Pyogenic | 89 | – | 46 | 45 | 25 | 18 | – |
| Tubercular | – | 9 | – | 2 | – | – | – |
| Fungal | 4 | 1 | 4 | 3 | – | – | 5 |
* The figures indicate the number of abscesses that showed the presence of a particular metabolite.
† Multiple peaks between 3.6 and 3.8 were assigned to trehalose, as reported in the literature.12