Schwannoma of Common Peroneal Nerve Presenting as a Foot Drop

Soo Hyun Cho; Ji Hoon Lee; Ho Geol Woo; Yu Jin Jung; Sang Beom Kim; Won Chul Shin

doi:10.14253/kjcn.2014.16.2.74

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Cho, Lee, Woo, Jung, Kim, and Shin: Schwannoma of Common Peroneal Nerve Presenting as a Foot Drop

Case Report

Korean J Community Nutr 2014;16(2):74-76.

Published online: 18 January 2014

DOI: https://doi.org/10.14253/kjcn.2014.16.2.74

Schwannoma of Common Peroneal Nerve Presenting as a Foot Drop

Soo Hyun Cho, Ji Hoon Lee, Ho Geol Woo, Yu Jin Jung, Sang Beom Kim, Won Chul Shin

Department of Neurology, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, Seoul, Korea

Address for correspondence; Won Chul Shin Department of Neurology, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, 892 Dongnam-ro, Gangdong-gu, Seoul 134-727, Korea Tel: +82-2-440-6166 Fax: +82-2-440-7262 E-mail: shinwc@khu.ac.kr

Received 16 May 2014 Revised 29 September 2014 Accepted 24 October 2014

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Foot drop is usually derived from peroneal nerve injury. Traumatic causes of peroneal nerve injury are more common than insidious causes including metabolic syndromes and mass lesions. We present a case with common peroneal neuropathy due to schwannoma, which is extremely rare. Complete excision of the mass lead to a gradual improvement of the symptoms. Schwannoma should be considered as a cause of common peroneal neuropathy. (Korean J Clin Neurophysiol 2014;16:74-76)

Keywords: Peroneal neuropathies, Paralysis, Neurilemmoma

REFERENCES

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Figure 1.

(A) Ultrasonographic finding. It shows 6.2×3.8×2.8 cm in size mass lesion including anechoic cystic portion and echogenic large cystic portion in anterolateral portion of the right lower leg. (B) T2-(left) and T1-(right) weighted MRI findings. It shows well-defined oval mass with multiloculations just below the bifurcation of right common peroneal nerve (white arrow). PERO; common peroneal nerve.

Figure 2.

Histopathologic finding. It shows a benign neoplasm composed of bundles of spindle cells with varying cellularity and nuclear palisading. No mitosis or necrosis is seen (H&E, ×400).

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