Demyelinating Flashcards

1
Q

T/F: there is an increasing risk of developing MS with higher and lower latitude.

A

True

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2
Q

Strongest HLA association in MS

A

DR locus of chromosome 6

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3
Q

Typical feature of MS characterized with unilateral visual blurring

A

Uhthoff phenomenon

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4
Q

Initial manifestation in approximately 25% of all MS patients.

A

Optic neuritis

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5
Q

T/F: As a corollary, the presence of bilateral INO in a young adult is virtually diagnostic of MS.

A

True

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6
Q

T/F: in about 1/3 of all MS patients particularly those with an acute onset of exacerbation, there may be slight to moderate mononuclear pleocytosis.

A

True

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7
Q

These are gamma globulin proteins in the CSF of patients with MS which migrate in agarose electrophoresis

A

Oligoclonal bands

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8
Q

Targets CD20 lymphocytes and has been found effective in reducing relapses

A

Rituximab

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9
Q

In this disease, there is symmetrical demyelination of corpus callosum affecting most prominently the central portion.

A

Marchiafava-Bignami disease

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10
Q

Focal demyelination of central area of corpus callosum seen in middle-aged chronic alcoholics

A

Marchiafava-bignami disease

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11
Q

Antibodies specific to neuromyelitis optica

A

Ab against aquaporin-4 molecule

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12
Q

T/F: In NMO, simultaneous optic neuritis and myelitis predict monophasic and relatively benign course

A

True

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13
Q

Carries the highest risk for multiple sclerosis (2.1-5.5 fold)

A

Epstein-Barr virus

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14
Q

Humanized anti-a4 integrin antibody that inhibits the trafficking of leukocytes across endothelium

A

Natalizumab

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15
Q

Most important neurologic manifestation of SLE

A

Stroke

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16
Q

Necrotizing vasculitides with association with Hepatitis B surface antigen

A

Polyarteritis nodosa

17
Q

Only agent approved for treatment of secondary progressive multiple sclerosis

A

Mitoxantrone

18
Q

Earliest electrophysiologic abnormality in GBS

A

Prolonged F wave latency