Neoplastic Disorder Choreas
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Here's our 67-year-old man with known
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Huntington's chorea and a family history thereof.
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He's got some mild movement abnormalities.
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We follow the cingulate sulcus all the
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way back to the supermarginal sulcus.
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And then right in front of that is this kind of
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obliquely oriented sulcus that
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delimits the motor area.
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And then in front of the motor area
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is the supplementary motor area,
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especially as we go towards the midline,
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and that supplementary motor area,
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which is an inhibitory area,
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a control station for the rest
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of the body is atrophic.
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I want to talk about chorea in
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neoplastic brain disease.
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And I'll bet you can't guess which neoplasm
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is most prone to present with chorea.
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It's the one that likes to infiltrate the deep
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recesses of the brain and the basal ganglia
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and the subthalamic nucleus,
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namely periventricular lymphoma,
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if you're getting asked a question about it.
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Any tumor, though,
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that disrupts the striato-pallido-thalamo-cortical
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motor circuitry can do it,
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but lymphoma is the classic.
Stephen J Pomeranz, MD
Chief Medical Officer, ProScan Imaging. Founder, MRI Online
ProScan Imaging
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