<prompt> Mollarets meningitis refers to which of the following?Recurrent pyogenic meningitisRecurrent leptomeningitis due to collagen vascular diseaseRecurrent meningitis due to hematological malignancyRecurrent benign aseptic meningitis  <response>: Mollarets meningitis is characterized by recurrent episodes of severe headache, meningismus, and fever; cerebrospinal fluid CSF pleocytosis with large endothelial cells, neutrophils, and lymphocytes; and attacks separated by symptom-free periods of weeks to months; and spontaneous remission of symptoms and signs. It is a recurrent, benign aseptic meningitis. Ref: Harrison, Edition-18, Page-162 