Inclusion body myositis presenting with isolated erector spinae paresis

摘要: Article abstract—We report a 70–year-old patient who presented with 4–year history of weakness paravertebral muscles. Electrodiagnostic studies revealed mixed neurogenic-myopathic pattern. Light microscopic examination atrophic fibers rimmed vacuoles; electron microscopy demonstrated cytoplasmic and intranuclear filaments measuring about 16 nm in width, consistent the diagnosis inclusion body myositis. Therapy corticosteroids provided only mild transient benefit. Ten months after initial evaluation, clinical electrodiagnostic progression disease.