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| A neuroma is a pathological condition of the common digital nerve, most
frequently between the third and fourth metatarsals (often called a Morion's
neuroma). The nerve sheath becomes abnormally thickened with fibrous (scar)
tissue and the nerve fibers eventually deteriorate. This common digital nerve
runs along the bottom (plantar) surface of the foot and branches to supply
sensation to the plantar aspect and tips of the third and fourth toes.
Occasionally, the common digital nerves in the second inter-metatarsal space
are affected. The symptoms are typically vague, with the usual feeling of walking
on a stone or having the sock bunched up under the toes. Occasionally, burning
and electrical sensations exist and the sensations are usually alleviated with
removal of the shoes and rubbing the affected area. Neuroma's should be
differentiated from joint injury and metatarsal stress fracture's as the symptoms
can be identical. |
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