title: Inclusion body myositis presenting with isolated erector spinae paresis.
abstract: We report a 70-year-old patient who presented with a 4-year history of weakness of paravertebral muscles. Electrodiagnostic studies revealed a mixed neurogenic-myopathic pattern. Light microscopic examination revealed atrophic fibers with rimmed vacuoles; electron microscopy demonstrated cytoplasmic and intranuclear filaments measuring about 16 nm in width, consistent with the diagnosis of inclusion body myositis. Therapy with corticosteroids provided only a mild and transient benefit. Ten months after the initial evaluation, clinical and electrodiagnostic examination demonstrated mild progression of the disease.
authors.affiliation: Department of Neurology, University of Heidelberg, Germany.
authors.forename: E
authors.initials: E
authors.lastname: Hund
authors.forename: R
authors.initials: R
authors.lastname: Heckl
authors.forename: H H
authors.initials: HH
authors.lastname: Goebel
authors.forename: H M
authors.initials: HM
authors.lastname: Meinck
mesh_terms: D000368:Aged; D006801:Humans; D002479:Inclusion Bodies; D008297:Male; D009132:Muscles / Q000648:ultrastructure; D009220:Myositis / Q000473:pathology*; D010291:Paresis / Q000473:pathology*; D013131:Spine