1 doctor weighed in:

How is Meningitis from Lyme disease diagnosed? Already have the lyme diagnosis? Past ER note says "likely Lyme Meningitis" but no inflammation on MRI.

1 doctor weighed in
Dr. Jason Adler
Pediatrics - Critical Care

In brief: Lumbar puncture

Meningitis is diagnosed classically by sending off cerebrospinal fluid analysis from a lumber puncture when there is a clinical suspicion that a patient has this condition.
Lyme meningitis can be diagnosed with specialized testing sent on cerebral spinal fluid often in conjunction with serum testing to confirm the presence of Lyme Disease.

In brief: Lumbar puncture

Meningitis is diagnosed classically by sending off cerebrospinal fluid analysis from a lumber puncture when there is a clinical suspicion that a patient has this condition.
Lyme meningitis can be diagnosed with specialized testing sent on cerebral spinal fluid often in conjunction with serum testing to confirm the presence of Lyme Disease.
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