What condition can lead to subacute meningitis characterized by lymphocytic predominance in CSF?

Subacute meningitis characterized by lymphocytic predominance in cerebrospinal fluid (CSF) is often associated with viral infections, which are typically the most common cause in such cases. Conditions that lead to a lymphocytic response in the CSF often include various viral pathogens, such as enteroviruses and herpesviruses. A viral infection can trigger this kind of response due to the body’s immune system reacting to the viral presence.

While an immunocompromised state can certainly lead to atypical presentations of infections, including those caused by organisms that might not typically cause meningitis in an otherwise healthy person, it is not the primary condition that leads to subacute meningitis with lymphocytic predominance. Autoimmune disorders can indeed affect the central nervous system, occasionally causing meningitis-like symptoms; however, these are less likely to present as a primary cause of lymphocytic predominance in the CSF.

Recent antibiotic treatment might lead to altered CSF findings but isn't a condition that specifically causes subacute meningitis characterized by lymphocytic predominance. It could, in fact, suppress the growth of pathogens and change the cellular profile through its effects on bacteria and the immune system.

Therefore, the most straightforward and common cause of sub