Other benign peripheral nerve tumors

1. Besides schwannomas and neurofibromas, other types are rare.

2. The fibrolipoma is a rare fatty tumor that presents as a swelling often in the median nerve, causing motor and sensory symptoms.

3. The intraneural perineuroma (aka hypertrophic neuropathy) usually involves a single peripheral nerve and causes painless but slowly progressive wasting and weakness, with mild or no sensory loss.

4. Non-nerve sheath tumors include: ganglion cysts, hypertrophic neuropathy, lipomas, hemangiomas, and desmoid tumors. Metastases to nerves can also occur (would be classified as malignant though)