NERVE TRUNK - Neurilemmoma

The specimen is a nodular pale piece of tissue, roughly ovoid in outline and showing on the back surface a pedicle which may represent the nerve trunk from which this arose.
This woman presented at the age of 58 with a twelve-month history of a swelling in the sole of the foot. She had had a plantar neuroma removed from the sole of the right foot many years before. Examination showed a huge swelling involving the sole of the foot and extending medially around the plantar border. Pressure over the lesion produced pain in the second and third toes. At operation the lesion was found to fill the underside of the sole of the foot, tracking back to the medial malleolus.