Neuropath of CNS Infections I Flashcards

1
Q

Herpes Viruses uses ______ transport to infect neurons

A

retrograde

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2
Q

Neutrophils are associated with _____ inflammation usually caused by _____

A

acute; bacteria

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3
Q

Lymphocytes are usually associated with ______ infections

A

viral

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4
Q

Microglial nodules are associated with _____ _____

A

viral encephalitis

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5
Q

Microglial cells are a type of ____ which are resident to the CNS

A

macrophage

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6
Q

Pachymeningitis is inflammation of the ____

A

Dura

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7
Q

Leptomeningitis is inflammation of the ____

A

Pia and Arachnoid

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8
Q

Encephalitis is a term used for ______ inflammation of the brain parenchyma

A

chronic

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9
Q

Cerebritis refers to _____ inflammation

A

acute

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10
Q

Myelitis is inflammation of the

A

spinal cord

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11
Q

Poliomyelitis is inflammation of the

A

spinal cord grey matter

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12
Q

Epidural abscesses occur most frequently in the

A

spine

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13
Q

The most common location for a bacterial infection is the

A

subarachnoid space

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14
Q

The most common way for a patient to get a bacterial abscess is ________ spread

A

hematogenous

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15
Q

The most common source of bacterial emboli is ________

A

endocarditis

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16
Q

The most common abscess forming bacteria are

A

Staph Aureus and Strep

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17
Q

The fibrous scar around abscesses in the brain result from

A

vessels from the leptomeninges providing fibroblasts

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18
Q

Mycobacteria and neurosyphilis cause a ____ infection of the brain

A

chronic

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19
Q

Tuberculous meningitis occurs in the ____ aspect of the brain and can cause _____ ______ ______

A

basal; cranial nerve palsy

20
Q

Tuberculous meningitis can form tuberculomas, which are

A

granulomas with a necrotic core surrounded by multinucleated giant cells

21
Q

CNS involvement of syphilis occurs in the _____ stage

A

tertiary

22
Q

Meningovascular Neurosyphilis form lesions called _____. They also have a _____ infiltrate made up of ______

A

gummas; perivascular; lymphocytes

23
Q

The two major symptoms of neurosyphilis are

A

Tabes Dorsalis and Paretic Neurosyphilis

24
Q

Organisms can only be seen in which of the two major neurosyphilitic syndromes?

A

Paretic Neurosyphilis

25
Q

Paretic Neurosyphilis has inflammatory lesions which cause _____ damage

A

parenchymal

26
Q

Lyme disease is a cause of isolated

A

Facial nerve palsy

27
Q

Lyme disease causes what type of meningitis?

A

Aseptic lymphocytic meningitis

28
Q

____ causes 80% of aseptic viral meningitis

A

Enterovirus

29
Q

____ are seasonal RNA viruses which are transmitted by

A

Arboviruses; arthropods

30
Q

Acute viral encephalitis present with both ____ infiltrates and _____ nodules

A

perivascular; microglial

31
Q

____ is the destruction of neurons by phagocytes seen in ___ ____ _____

A

Neuronophagia; acute viral encephalitis

32
Q

HSV1 has a predilection to cause hemorrhagic necrosis in the ______ lobe in a _____ pattern

A

temporal; bilateral

33
Q

CMV encephalitis occurs in which two primary ways?

A

Intrauterine infection (congential CMV) and immunosuppression

34
Q

_____ can cause encephalitis in immunosuppressed patients

A

Varicella Zoster

35
Q

Rabies infections start in _____ muscle then get to the CNS via ____

A

skeletal; retrograde axonal transport

36
Q

What is the pathological hallmark of rabies?

A

Negri Bodies

37
Q

Poliomyelitis is restricted to the

A

grey matter of the spinal cord

38
Q

Fungi can cause _____ lesions

A

granulomatous

39
Q

Fungi have a predilection for ______, and can cause _____ and ______

A

vessels; infarcts; hemorrhage

40
Q

Patients with neutropenia are at increased risk of infection by which two fungi?

A

Aspergillus and Candida

41
Q

Zygomycosis often infect patients who are in ____ and cause

A

DKA; rhinocerebral disease

42
Q

Epidemic outbreaks of meningitis are most associated with what bacteria?

A

Neisseria Meningitidis

43
Q

Most common CNS infection

A

Bacterial Meningitis

44
Q

What is the second most common CNS infection and when do they occur in life?

A

Bacterial abscess in 2nd or 3rd decade

45
Q

Due to the influx of neutrophils, bacterial infections of the CNS have ______ infections

A

purulent

46
Q

Initially, abscesses are filled with ____. Then after 10 days, a _______ capsule forms around the necrosis.

A

neutrophils; fibrotic