Morton's neuroma

1. What is a Morton's neuroma?
2. Where is a Morton's neuroma usually located?
3. What is seen clinically in Morton's neuroma? On exam?
4. What is the treatment of Morton's neuroma?

Answers:
1. Irritation and degeneration of the digital nerves in the toes resulting in fibrosis, producing a painful mass near the area of the metatarsal heads.
2. Between 2nd and 3rd, or 3rd and 4th digits.
3. Sharp shooting forefoot pain, commonly with dysesthesia and numbness. Test by squeezing the metatarsal heads together while applying pressure to the interdigit webspace --> pain in plantar webspace is positive.
4. Shoes with soft sole and wide toe box, metatarsal pad, steroid injection. Surgical excision if indicated.