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Journal List > J Korean Foot Ankle Soc > v.20(2) > 1043417

Park, Park, and Ahn: Tarsal Tunnel Syndrome Associated with Gout Tophi: A Case Report

Abstract

Tarsal tunnel syndrome is an entrapment neuropathy of the posterior tibial nerve or its branches in the fibro-osseous tunnel beneath the flexor retinaculum. This pathology is associated with multiple etiologies, including trauma, space-occupying lesions, and impaired biomechanics. We report a case of tarsal tunnel syndrome associated with gout tophi in a patient with untreated gout along with a review of the relevant literature on tarsal tunnel syndrome.

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jkfas-20-84f1.tif
Figure 1.
Axial computed tomograph shows osteolytic changes with subcortical cysts and multiple calcifications in the talar body (A) and in the first and second tarsometatarsal joints (B).
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jkfas-20-84f2.tif
Figure 2.
Coronal magnetic resonance images show an ill-defined mass in the talar body with low signal intensity on T1-weighted imaging (A) and of heterogeneous signal intensity on T2-weighted imaging (B).
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jkfas-20-84f3.tif
Figure 3.
(A, B) Intraoperative photo shows a gouty tophus compressing the medial plantar nerve. (C) The excised mass was composed of a yellowish tissue.
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jkfas-20-84f4.tif
Figure 4.
Histopathologic findings with H&E stain (A: ×100, B: ×200) show the presence of crystal deposits surrounded by a scalloping of palisaded histiocytes and multinucleated giant cells (arrows) containing an amorphous-appearing pale to pink deposits in the center (arrowheads).
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