Fig. 3From: Intracranial actinomycosis of odontogenic origin masquerading as auto-immune orbital myositis: a fatal case and review of the literaturea T1w fat-suppressed post-gadolineum MRI scan which shows contrast enhancement at the surface of the basal brain structures compatible with basal meningitis (arrow). b Diffusion-weighted image shows high signal, which represents diffusion restriction caused by an acute brain infarct, bilaterally in the thalamus (arrow indicated by asterisk). In addition the high signal posterior in the ventricles is suggestive of ventricular empyema (arrow indicated by double asterisk). c and d Pre and post-gadolineum T1w MRI scan demonstrating a lesion in the right orbit with ring enhancement compatible with an abscessBack to article page