TY - CHAP M1 - Book, Section TI - Diseases of Muscle A1 - Ulane, Christina M. A1 - Williams, Olajide A2 - Brust, John C.M. PY - 2019 T2 - CURRENT Diagnosis & Treatment: Neurology, 3e AB - ESSENTIALS OF DIAGNOSISWeakness, generally greater proximally than distallyNormal sensation (absent another cause for sensory loss)Normal sphincter functionRelative preservation of deep tendon reflexesLaboratory testing supportive of diagnosis and etiologyElectromyography testing is a key component of diagnosisMuscle biopsy and genetic testing often definitive SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/28 UR - neurology.mhmedical.com/content.aspx?aid=1159971651 ER -