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KMID : 0948920100090010036
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Clinical Pain
2010 Volume.9 No. 1 p.36 ~ p.40
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Bilateral Tarsal Tunnel Syndrome Caused by Space-Occupying Lesion -A Case Report-
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Kang Jin-Woo
Koo Jung-Hoi
Song Sun-Hong
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Abstract
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Tarsal tunnel syndrome (TTS) is an entrapment neuropathy caused by compression of the tibial nerve and characterized by pain or numbness in the toes and sole. In many cases, the cause of this syndrome is idiopathic. But, sometimes it can be caused by a space-occupying lesion. A 42-year-old woman was presented with both sole pain and numbness which were persisted for two years. She had no history of medical illness such as diabetes mellitus, and there was no traumatic event. On physical examination, there was no muscle atrophy on the both feet. Tenderness of plantar surface was not definite. Motor and sensory function were symmetrically intact. Nerve conduction studies and electromyography were not helped to reveal the sufficient evidence of plantar neuropathy. On the contrary, the ultrasonography showed a small ganglion of left tibial nerve at the left tarsal tunnel. A talocalcaneal coalition, that compressed the right tibial nerve, was shown in right tarsal tunnel. Theses affected nerves in both tarsal tunnel were very thin and showed uniformly hypoechoic findings. Edematous change of soft tissue around both affected nerves could be observed. The ultrasonography guided Tinel’s sign was also positive on the both affected nerves. According to ultrasonographic findings, we made a diagnosis of bilateral TTS due to different space-occupying lesions.
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KEYWORD
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Tarsal tunnel syndrome, Ganglion, Talocalcaneal coalition
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