On contrast-enhanced MRI, the enhancement was confined from ethmoidal sinus to the bottom of frontal lobe, which suggests the empyema stems from sinus and flows along the space of interhemispheric and infratentorial subdural.
Caption: FIGURE 1: (a) Cranial X-ray showed a fragment of a dagger located intraorbitally in the superior and nasal quadrant and intracranially in the ethmoidal sinus in left site (including ruler for measurement).
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