PMC5180436_01
(a-c) Contrast-enhanced T1-weighted sequences show the brain abscess in the right parietal lobe; (d) diffusion-weighted magnetic resonance imaging
SNI-7-955-g001.jpg
PMC5180436_01_SNI-7-955-g001.jpg
F1
On contrast-enhanced magnetic resonance imaging (MRI), a ring-shaped lesion in the right parietal lobe was noted [Figure 1a-c]. The diffusion-weighted images showed an intensive hyperintense signal, which was strongly suspicious for a brain abscess [Figure 1d].
(a, b) Surgical site after durotomy. No pathological alteration of the brain surface under white light (a), intense fluorescent staining under YE560 (b)
SNI-7-955-g002.jpg
PMC5180436_01_SNI-7-955-g002.jpg
F2
The lesion could not be detected under white light, however, showed intensive fluorescent staining under the YE560 nm filter [Figure 2a and b].
(a, b) Surgical site after opening of the abscess. Drainage of pus under white light (a) and under YE560 (b). Note the nonfluorescence of the pus
SNI-7-955-g003.jpg
PMC5180436_01_SNI-7-955-g003.jpg
F3
After opening of the capsule, viscous pus poured out [Figure 3a] that was not fluorescing under filtered light [Figure 3b].