Abstract
A fifty-year-old woman first noted pain and numbness over the plantar aspect of the foot six months ago. The pain and numbness progressed and she consulted our hospital. Inspection of the foot revealed atrophy of abductor hullucis muscle, and there weas hypesthesia over the sensory distribution of the medial plantar nerve. Palpation of the medial aspect of the ankle revealed elastic mass just distal of tarsal tunnel. Percussion over this indurated area produced shooting pain in the soles of the foot. The preoperative diagnosis was medial plantar nerve palsy caused by ganglion. At operation, medial plantar nerve was compressed by ganglion. The ganglion was resected and the medial plantar nerve was mobilished. Six months after operation there was slight recovery of abductor hullucis muscle atroply and was no longer hypesthesia and shootiny pain.
