A 54-year-old woman consulted because of a mass at the inner aspect of her right ankle. It had been there for at least 5 years, and had been growing in size resulting in pain and numbness, and difficulty for the patient to wear closed shoes. She had no weakness. MRI showed a nerve sheath tumor.
The patient underwent surgery to remove the tumor. The tumor was arising from the tibial nerve, within the tarsal tunnel. The surgeon was able to separate the tumor from the nerve and remove it completely. The patient’s symptoms improved after the surgery.
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