PMC5680667_01
Initial MRI showing tectal ring enhancing mass. (a) Sagittal T1 with contrast; (b) Axial T1 with contrast; (c) Axial FLAIR showing surrounding edema; (d) Axial DWI; (e) Axial ADC
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F1
Initial magnetic resonance imaging (MRI) showed a 10 mm x 9 mm left midbrain tectum ring-enhancing lesion with associated surrounding edema and mild hydrocephalus [Figure 1].
MRI after antibiotic treatment, 15 weeks post-discharge showing complete resolution of the previous tectal mass, without evidence of edema or hydrocephalus. (a) Axial T1 with contrast; (b) Axial FLAIR
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F2
The tectal lesion completely resolved after 15 weeks of intravenous ceftriaxone [Figure 2].