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Diffusion‐Weighted MRI Diagnosis of Pure Motor Stroke Limited to Primarily Distal Leg Weakness
Author(s) -
Hochman M. Seth,
DePrima Steven J.,
Leon Bill J.
Publication year - 2000
Publication title -
journal of neuroimaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.822
H-Index - 64
eISSN - 1552-6569
pISSN - 1051-2284
DOI - 10.1111/jon2000102118
Subject(s) - medicine , weakness , magnetic resonance imaging , stroke (engine) , diffusion mri , presentation (obstetrics) , diffusion weighted magnetic resonance imaging , radiology , facial weakness , muscle weakness , surgery , mechanical engineering , engineering
Pure motor stroke (PMS) manifesting as distal weakness of a single extremity has rarely been described. The authors report a 59‐year‐old man with PMS who had primarily distal weakness of a single lower extremity, which to the authors' knowledge has not been previously described. Four days after onset, positive diffusion‐weighted imaging confirmed that the small subcortical T2‐ weighted hyperenhancing and nonenhancing T1‐weighted hypointensity noted on magnetic resonance imaging (MRI) represented an acute PMS that was the cause of the patient's weakness. Increased awareness of this rare clinical presentation of PMS coupled with the promise of imaging the PMS with diffusion weighted MRI should lead to earlier stroke intervention in these patients.