Encephalitis

Question 1

Inflammation of the brain with involvement of the brain parenchyma

Answer 1

Encephalitis

Question 2

Encephalitis common causes

Answer 2

herpes simplex virus

Question 3

West Nile encephalitis Presentation

Answer 3

Nonspecific complaints: fever, malaise, body aches

Confusion, seizures, focal neuro deficits

Question 4

Signs of meningoencephalitis

Answer 4

Confusion, seizures, focal deficits

photophobia, meningeal signs, headache

Question 5

Herpes simplex virus encephalitis

Answer 5

Most cases due to re-inactivation of HSV-1

Question 6

HSV encephalitis history

Answer 6

bizarre behavior

Question 7

HSV encephalitis PE

Answer 7

speech disorder
gustatory or olfactory hallucinations
acute hearing impairment

Question 8

HSV encephalitis diagnosis

Answer 8

Spinal tap for CSF studies

HSV PCR
HSV culture

MRI - characteristic pattern in temporal lobes, usually bilaterally

Question 9

HSV encephalitis treatement

Answer 9

Empiric IV acyclovir

Question 10

HSV encephalitis MRI findings

Answer 10

Coronal FLAIR MRI shows increased T2 signal

Question 11

West Nile encephalitis

Answer 11

Suspected with fever, AMS in late spring, summer, early fall

Question 12

West nile PE

Answer 12

AMS
extrapyramidal symptoms
Flaccid paralysis - suggestive of transverse myelitis

Question 13

West nile encephalitis diagnosis

Answer 13

CSF resemble viral meningitis

ELISA for IgM to West Nile virus