1 Department of Clinical and Experimental Medicine, Division of Infectious Diseases, University of Bologna, S. Orsola Hospital; Department of Neurological Sciences, Bellaria Hospital, Bologna, Italy; University Department of Neuropathology, Division of Neuroscience and Psychological Medicine, Imperial College Faculty of Medicine, Charing Cross Campus, London, United Kingdom; and Department of Neuroscience, University of Modena, Italy
This 46-year-old woman who lived in a rural area presented with worsening left facial nerve palsy, left-sided paresthesia, and ataxia. Peripheral neutrophilia was also present. Magnetic resonance (MR) imaging revealed a multilocular cyst within the pons that was hypointense on T1-weighted images; the cyst demonstrated peripheral enhancement, central hyperintensity, and peripheral hypointensity on T2- and T2*-weighted sequences (Fig. 1A and B). Via a left retrosigmoidal approach, the lateral aspect of the pons was opened near the bulbopontine sulcus. The cyst found 0.5 cm beneath the pial surface was removed after evacuation of
Address reprint requests to: Federico Roncaroli, M.D., University Department of Neuropathology, Division of Neuroscience and Psychological Medicine, Faculty of Medicine, Charing Cross Campus, Fulham Palace Road, London W6 8RF, United Kingdom. email: email@example.com.
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