[Chronic meningitis: etiologies and diagnostic work-up]

We describe the case of a 62-year-old woman who presented with insidious onset and slowly progressive neurological complaints. This case illustrates the diagnostic challenges clinicians face because the lack of specific symptomatology and numerous complementary exams. The broad differential diagnosis of this disease requires a diagnostic strategy to be developed. Clinical reasoning is based on clinical, biological and radiological information and highlights the importance of an interdisciplinary approach to patient care.