TABLE 3.
Breakdown by Diagnosis of 402 Consecutive Polyneuropathy Patients Referred to the University of Texas at Dallas/San Antonio Neuromuscular Clinics4
| Diagnosis | # of Patients | % |
|---|---|---|
| Hereditary | 120 | 29.8 |
| Cryptogenic Sensory Polyneuropathy | 93 | 23.1 |
| Diabetes Mellitus | 62 | 15.4 |
| Inflammatory Demyelinating Polyneuropathy | 53 | 13.1 |
| Multifocal Motor Neuropathy | 21 | 5.2 |
| Vitamin B12 deficiency | 9 | 2.2 |
| Cryptogenic sensorimotor polyneuropathy with severe distal weakness | 7 | 1.7 |
| Drug-induced | 6 | 1.5 |
| Sensory Neuronopathy (3 idiopathic, 1 anti-Hu) | 4 | 1.0 |
| Other† | 27 | 6.7 |
†
includes: motor neuron disease plus SMPN (4), SMPN associated with a solid tumor (4), mononeuritis multiplex (4), post-polio with SMPN (3), vasculitis (3), infectious (3), axonal motor neuropathy (2), collagen vascular disease associated SMPN (1), thyrotoxicosis (1), SMPN associated with leukemia (1), toxin-induced (1).
From Dyck PJ, Oviatt KF, Lambert EH. Intensive evaluation of referred unclassified neuropathies yields improved diagnosis. Ann Neurol 1981; 10:222-226; with permission.