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flailing movements BQ'

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Believe

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Topics: 36
Posts: 93

Dec 04, 2005 - 7:40 AM

A 78-year-old woman has a 2-month history of flailing movements of the limbs on one side. There is no family history of a similar movement disorder. Which of the following structures is most likely to be involved?

A) Cerebellar hemisphere

B) Cingulate cortex

C) Primary motor cortex

D) Striatum

E) Substantia nigra

F) Subthalamic nucleus

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reet

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Topics: 152
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Dec 04, 2005 - 8:51 AM

subthalmic nucleus???

Edited by reet on Dec 04, 2005 - 9:08 AM

reet

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Dec 04, 2005 - 9:11 AM

? F

sturge_weber

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Dec 04, 2005 - 12:23 PM

yep contralateral subthalamic nucleus, and is seen in hypertensive patients

roopashri

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Dec 04, 2005 - 2:01 PM

This is hemiballismus, F

Believe

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Topics: 36
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Dec 07, 2005 - 2:23 AM

Hemiballism is a rare movement disorder that presents with unilateral flinging movements of the limbs. In traditional teaching, it has been characterised as almost pathognomonic of a lesion in the subthalamic nucleus (STN).

Recent studies have pointed to previously unrecognised causes, particularly non-ketotic hyperosmolar hyperglycaemia and complications of HIV infection, that may account for a substantial proportion of cases of hemiballism.

mjl1717

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