• T Sobczak, L Alleman, H Wille, F Menard, Y Benard, B Perard, and M O Vareil.
• Service de Maladies Infectieuses et Tropicales, Centre Hospitalier de la Côte Basque, 13, avenue de l'Interne Jacques Loeb, 64100 Bayonne. Electronic address: teddy.sobczak@chu-bordeaux.fr.
• Rev Med Interne. 2021 May 1; 42 (5): 359-362.

IntroductionBing-Neel syndrome is a rare complication of Waldenström macroglobulinemia, defined by monoclonal lymphoplasmocytic cells in the cerebrospinal fluid or in central nervous system biopsy.Case ReportWe report a 47-year-old man, with no prior history, who presented a recurrent aseptic lymphocytic meningitis with central nervous manifestations. The presence of a monoclonal lymphoplasmacytic proliferation in cerebrospinal fluid, blood and bone marrow biopsy results was compatible with a diagnosis of Bing-Neel syndrome. Despite the absence of any specific treatment, there was no recurrence of symptoms at 4-month follow-up, and the MRI lesions remained stable.ConclusionWe report a case of Bing-Neel syndrome revealed by a recurrent meningitis. Outcome without treatment was favorable at 4-month follow-up.Copyright © 2021 Société Nationale Française de Médecine Interne (SNFMI). Published by Elsevier Masson SAS. All rights reserved.

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