II. Background
- Subtype of Diabetic Neuropathy
- Sudden onset large nerve involvement
- Associated with nerve infarction
III. Distribution: Common areas effected
- Wrist Drop (Radial Nerve)
- Loss of finger flexion and grip (Median Nerve)
- Foot Drop (deep peroneal nerve, L4-L5)
- Recurrent laryngeal nerve
-
Cranial Nerve palsy (CN 3, CN 4, CN 6)
- Ophthalmoplegia, Ptosis, Diplopia yet PERRLA (CN 3)
- Affected eye slightly more elevated (CN 4)
- Affected eye deviated medially (CN 6)
- Bell's Palsy (CN 7)
IV. Course
- Often resolves spontaneously in 3-12 months
V. Associated Conditions: Mononeuropathy Multiplex (variant)
- Multiple nerves affected
- Consider Vasculitis as cause
VI. Differential Diagnosis
- See Mononeuropathy