Diagnostic Considerations
Table 1. Differential Diagnosis of Lymphocytic Choriomeningitis (Open Table in a new window)
Diagnosis |
Season |
Usual Source |
Relative Bradycardia |
Pharyngitis |
Diarrhea |
Parotitis |
Orchitis |
CSF Glucose level |
LCMV infection |
Fall/winter |
Mouse, hamster |
+ |
+/- |
- |
+/- |
+/- |
Normal or decreased |
Year-round |
Food, water |
+ |
+ |
+ (late) |
- |
- |
Normal |
|
Summer |
Water |
- |
+ |
+ |
- |
- |
Normal |
|
Arboviral illness† |
Summer |
Mosquito |
- |
- |
- |
- |
- |
Normal |
Summer/fall |
Dogs, rats |
- |
- |
- |
- |
- |
Normal |
|
Winter |
Person |
- |
+ |
- |
- |
- |
Normal |
|
Winter/spring |
Person |
- |
- |
- |
+ |
+/- |
Normal or decreased |
†Including West Nile virus (WNV), Japanese encephalitis virus (JEV), St. Louis encephalitis virus (SLEV), Zika virus (ZIKV), Yellow fever virus (YFV), Western and Eastern equine encephalitis (WEE, EEE)
Other causes of aseptic meningitis (eg, herpes simplex virus (HSV), varicella-zoster virus (VZV), syphilis, Cryptococcus, Coccidioides immitis, Mycobacteria tuberculosis, malignancy, NSAIDs/other medications) should also be considered based on the history.