A 45-year-old man presents with sudden, shock-like involuntary movements. He has no family history of similar condition. Brain MRI was unremarkable. What is most likely the type of the movement?
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الإجابة: A. Myoclonus
Myoclonus is defined as sudden, brief, shock-like muscle jerks, exactly as described. Chorea is brief, jerky but flowing 'dance-like' movement (e.g. Huntington, usually familial), dystonia is sustained twisting postures, and hypotonia is not an involuntary movement.
ليش كل خيار صح أو غلط
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A
ليش صح
Myoclonus is sudden, brief muscle jerks (including excessive startle), matching sudden shock-like involuntary movements.
✓ Movement disorder.pdf · p. 2 -
B
ليش غلط
Chorea is brief, jerky, dance-like movement, as in Huntington disease, rather than a sudden shock-like jerk.
✓ Movement disorder.pdf · p. 2 -
C
ليش غلط
Hypotonia means reduced muscle tone and is a cerebellar sign, not a sudden involuntary movement.
✓ Basics of Neurology-Ali Rawas.pdf · p. 90 -
D
ليش غلط
Dystonia is sustained or intermittent muscle contraction causing abnormal twisting postures, not a sudden brief jerk.
✓ Movement disorder.pdf · p. 2
- المصدر
- Movement disorder.pdf · p. 2
- المحاضرة
- Movement Disorders · Neurology · Module C
- ظهر في
- MED42 Compre C