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contentuptodate· Content· item f6_36_6735

©2013 UpToDate ® Email Arm and intrinsic hand muscle atrophy in a patient with amyotrophic lateral sclerosis Arm and intrinsic hand muscle atrophy with a "claw hand" appearance is noted. Fasciculations causing intermittent movement of the left fingers are apparent. Courtesy of Nestor Galvez-Jimenez, MD, FACP.