title: Dissociated weakness of sternocleidomastoid and trapezius muscles with lesions in the CNS.
abstract: We describe three patients with lesions in the CNS that produced dissociated weakness of trapezius (TM) and sternocleidomastoid muscles (SCM). One patient with a right cerebral hemisphere lesion had left TM weakness and right SCM weakness. A second, with a brainstem lesion, and a third, with a high cervical cord lesion, had TM weakness with preserved SCM strength. We discuss the findings according to the known neuroanatomy.
authors: Department of Neurology, Cleveland VA Medical Center, OH 44106.
authors: R
authors: R
authors: Manon-Espaillat
authors: R L
authors: RL
authors: Ruff
mesh_terms: D000328:Adult; D001927:Brain Diseases / Q000503:physiopathology; D001933:Brain Stem; D002493:Central Nervous System Diseases / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009132:Muscles / Q000503:physiopathology*; D009334:Neck Muscles / Q000503:physiopathology*; D012782:Shoulder / Q000503:physiopathology*; D013118:Spinal Cord Diseases / Q000503:physiopathology