RT Book, Section A1 Amato, Anthony A. A1 Russell, James A. SR Print(0) ID 1115659656 T1 Idiopathic Polyneuropathy T2 Neuromuscular Disorders, 2e YR 2015 FD 2015 PB McGraw-Hill Education PP New York, NY SN 9780071752503 LK neurology.mhmedical.com/content.aspx?aid=1115659656 RD 2024/10/05 AB In our experience and others, a cause for neuropathy will not be found in as many as 50% of cases despite an extensive work-up.1–11 The chronic idiopathic polyneuropathies are likely a heterogeneous group of neuropathies. Most individuals have only sensory symptoms, but some may have mild weakness (e.g., toe extension) or slight abnormalities on motor conduction studies. The neuropathy may affect large- and/or small-diameter nerve fibers. As the etiology is unknown, only symptomatic management of the neuropathic pain is available.