• F Perren, L Fankhauser, B Thiévent, J-C Pache, J Delavelle, T Rochat, T Landis, and C Chizzolini.
• Department of Neurology, University Hospital and Medical Faculty of Geneva, Geneva, Switzerland.
• J. Neurol. Sci. 2011 Feb 15; 301 (1-2): 96-9.

AbstractLangerhans cell histiocytosis (LCH) with multiple organ involvement is a rare disorder in adults. Extrapituitary involvement of the central nervous system (CNS) is uncommon. We report the unusual case of a 55-year-old woman presenting with a left-sided hemiataxia-hemiparesis, left hemisensory loss and short-lasting episodes of an alien left hand due to lesions of the internal capsule and the right thalamus, extending into the mesencephalon associated with extensive surrounding edema, without pituitary involvement. The neuroradiological image suggested glioblastoma multiforme. Brain biopsy revealed inflammatory tissue and "pseudotumoral" multiple sclerosis was suspected. Biopsy of concomitant lung and bone lesions disclosed Langerhans cell histiocytosis. The treatment with pulsed steroids in association with mycophenolate mofetil led to a sustained, clinical neurological remission.Copyright © 2010 Elsevier B.V. All rights reserved.

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