LAUSR

Annals of Indian Academy of Neurology ¦ Volume 25 ¦ Issue 4 ¦ July-August 2022 757 Sir, Eosinophilic meningitis is a rarely encountered condition in India and is characterized by the presence of 10 or more eosinophils per microliter in the cerebrospinal fluid (CSF) or eosinophilia of at least 10 percent of the total CSF leukocyte count. The usual etiology is the invasion of the central nervous system by helminthic parasites, the most common being Angiostrongylus cantonensis, but other infectious and noninfectious causes have also been implicated.[1] Angiostrongylus eosinophilic meningitis is endemically seen in Southeast Asia and the Pacific Basin, beyond which it is a rare entity. In India, it has only been documented in a few case reports and case series.[2‐6] We report an interesting case of eosinophilic meningitis in three members of a family living in the same household in Kerala.