needle biopsy has been used by us for histochemical and electron microscopic examination of muscle during the diagnosis and treatment of neuropathic and myopathic disorders , for the diagnosis of mitochondrial myopathies , to study the course of recovery in polymyositis , and for investigations into muscle changes in systemic lupus erythematosus ( sle ) and other autoimmune conditions .
C0024141
systemic lupus erythematosus
C0004364
autoimmune conditions