Meningitis: Difference between revisions

Content deleted Content added

Inline

Latest revision as of 15:46, 11 November 2025

Inflammation or infection of the meninges and subarachnoid spact
May be acute, subacute, or chronic (≥4 weeks)
May be caused by bacteria, viruses, fungi, parasites, or non-infectious causes
- See also aseptic meningitis

Typically confirmed by lumbar puncture demonstrating pleocytosis, with or without MRI brain

Parameter	Normal	Bacterial	Viral	Tuberculous	Fungal
Opening pressure	12 to 20 cmH₂O	raised	normal or raised	raised	raised
Appearance	clear	cloudy	clear	clear or cloudy	clear or cloudy
WBC count	<5	>100	5 to 100	5 to 500	5 to 500
Differential		PMN	lymphocyte	lymphocyte	lymphocyte
Protein	0.4 g/L	high	somewhat high	very high	high
Glucose	>2/3 of plasma	very low	normal to low	very low	low

@@ Line 2: / Line 2: @@
 *Inflammation or infection of the meninges and subarachnoid spact
-*May be acute, subacute, or [[Chronic meningitis|chronic]]
+*May be acute, subacute, or [[Chronic meningitis|chronic]] (≥4 weeks)
 *May be caused by [[Bacterial meningitis|bacteria]], [[Viral meningitis|viruses]], [[Fungal meningitis|fungi]], [[Parasitic meningitis|parasites]], or [[Aseptic meningitis|non-infectious causes]]
+**See also [[aseptic meningitis]]
 ==Diagnosis==
-*Typically confirmed by lumbar puncture demonstrating pleocytosis, with or without MRI brain
+*Typically confirmed by lumbar puncture demonstrating [[CSF pleocytosis|pleocytosis]], with or without MRI brain
 {| class="wikitable"
 !Parameter
 !Normal
-!Bacterial
+![[Bacterial meningitis|Bacterial]]
-!Viral
+![[Viral meningitis|Viral]]
-!Tuberculous
+![[Tuberculous meningitis|Tuberculous]]
-!Fungal
+![[Fungal meningitis|Fungal]]
 |-
 |Opening pressure