J Korean Orthop Assoc.  2008 Feb;43(1):127-130. 10.4055/jkoa.2008.43.1.127.

The Intraneural Ganglion of the Posterior Tibial Nerve and Medial Plantar Nerve

• Yoo SH
• Ahn SJ
• Kim BH
• Song MH
• Shin SH

• KMID: 2106428
• DOI: http://doi.org/10.4055/jkoa.2008.43.1.127

Abstract

Intraneural ganglion of the tibial nerve is very rare. We have experienced a case of the intraneural ganglion cyst in the tibial nerve and medial plantar nerve, which was located at the level of the ankle and foot. A 29-year-old male suffered from lumps causing numbness around the medial aspect of the sole and great toe. But there was no weakness and change of the motor function. We excised the cystic mass successfully and the neurologic symptoms disappeared.

Keyword

Tibial nerve; Intraneural ganglion

MeSH Terms

Adult
Animals
Ankle
Foot
Ganglion Cysts
Humans
Hypesthesia
Male
Neurologic Manifestations
Tibial Nerve
Toes

Figure

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  Fig. 1 T1 weighted axial and T2 weighted axial MR images of the ankle at the level of the just posterior of the medial malleolus show a round cystic lesion along the course of the posterior tibial nerve.

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  Fig. 2 T1 weighted axial and T2 weighted axial MR images of the foot show a round cystic lesion along the course of the medial plantar nerve.

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  Fig. 3 Coronal MR images show two separated round cystic lesions along the course of the posterior tibial nerve and the medial plantar nerve.

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  Fig. 4 At surgery, cystic lesion, 1.3×3 cm, was seen in the posterior tibial nerve.

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  Fig. 5 After distal extension, cystic lesion, 0.7×1.5 cm, was seen in the medial plantar nerve.

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  Fig. 6 Histology of the resected tumor. the tumor consists of thickened collagenous wall and mucoid substance (H&E stain, ×20).

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