Schwannoma of the common peroneal nerve – a rare incidence

Schwannomas are benign tumours arising from neurilemmal cells which forms the myelin sheath of peripheral nerves. It usually occurs in the head, but may be found in the brachial plexus and sciatic nerve. Common peroneal nerve schwannoma are rare. We report a case of a middle age gentleman who presen...

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Main Authors: Tan JA, Levin KB, Shaharuddin Abd. Rhani, Hisam A
Format: Article
Language:English
Published: Pusat Perubatan Universiti Kebangsaan Malaysia 2017
Online Access:http://journalarticle.ukm.my/12282/
http://journalarticle.ukm.my/12282/
http://journalarticle.ukm.my/12282/1/6._tan_et_al.pdf
id ukm-12282
recordtype eprints
spelling ukm-122822018-11-02T22:03:01Z http://journalarticle.ukm.my/12282/ Schwannoma of the common peroneal nerve – a rare incidence Tan JA, Levin KB, Shaharuddin Abd. Rhani, Hisam A, Schwannomas are benign tumours arising from neurilemmal cells which forms the myelin sheath of peripheral nerves. It usually occurs in the head, but may be found in the brachial plexus and sciatic nerve. Common peroneal nerve schwannoma are rare. We report a case of a middle age gentleman who presented with pain and swelling over the right popliteal fossa with associated right radicular pain of the anterolateral leg and weakness of ankle dorsiflexion. Examination revealed a 3x2 cm lump behind the posterolateral aspect of the right knee with positiveTinel’s sign upon tapping of the lump, sensory deficit over the anterolateral aspect of the leg and the ankle dorsiflexors had a muscle power of grade 3. Magnetic resonance imaging (MRI) of the right leg revealed a well circumscribed, oval lesion located along the pathway of the common peroneal nerve homogenously hypointense on T1-weighted images and heterogeneously hyperintense on T2 weighted images compared to the muscles. The lesion was not surpressed on fat suppression sequences. Intra-operatively, we noted that the schwannoma was in continuity with the common peroneal nerve. The patient underwent excision of the schwannoma. Post operatively, the pain reduced remarkably but patient suffers from numbness and right foot drop as a complication of the tumour. This case highlights the rarity of common peroneal nerve schwannoma which presents with neuropathic symptoms complicated with right foot drop. Pusat Perubatan Universiti Kebangsaan Malaysia 2017 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/12282/1/6._tan_et_al.pdf Tan JA, and Levin KB, and Shaharuddin Abd. Rhani, and Hisam A, (2017) Schwannoma of the common peroneal nerve – a rare incidence. Journal of Surgical Academia, 7 (2). pp. 24-27. ISSN 2231-7481 http://jsurgacad.com/toc/7/2
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language English
description Schwannomas are benign tumours arising from neurilemmal cells which forms the myelin sheath of peripheral nerves. It usually occurs in the head, but may be found in the brachial plexus and sciatic nerve. Common peroneal nerve schwannoma are rare. We report a case of a middle age gentleman who presented with pain and swelling over the right popliteal fossa with associated right radicular pain of the anterolateral leg and weakness of ankle dorsiflexion. Examination revealed a 3x2 cm lump behind the posterolateral aspect of the right knee with positiveTinel’s sign upon tapping of the lump, sensory deficit over the anterolateral aspect of the leg and the ankle dorsiflexors had a muscle power of grade 3. Magnetic resonance imaging (MRI) of the right leg revealed a well circumscribed, oval lesion located along the pathway of the common peroneal nerve homogenously hypointense on T1-weighted images and heterogeneously hyperintense on T2 weighted images compared to the muscles. The lesion was not surpressed on fat suppression sequences. Intra-operatively, we noted that the schwannoma was in continuity with the common peroneal nerve. The patient underwent excision of the schwannoma. Post operatively, the pain reduced remarkably but patient suffers from numbness and right foot drop as a complication of the tumour. This case highlights the rarity of common peroneal nerve schwannoma which presents with neuropathic symptoms complicated with right foot drop.
format Article
author Tan JA,
Levin KB,
Shaharuddin Abd. Rhani,
Hisam A,
spellingShingle Tan JA,
Levin KB,
Shaharuddin Abd. Rhani,
Hisam A,
Schwannoma of the common peroneal nerve – a rare incidence
author_facet Tan JA,
Levin KB,
Shaharuddin Abd. Rhani,
Hisam A,
author_sort Tan JA,
title Schwannoma of the common peroneal nerve – a rare incidence
title_short Schwannoma of the common peroneal nerve – a rare incidence
title_full Schwannoma of the common peroneal nerve – a rare incidence
title_fullStr Schwannoma of the common peroneal nerve – a rare incidence
title_full_unstemmed Schwannoma of the common peroneal nerve – a rare incidence
title_sort schwannoma of the common peroneal nerve – a rare incidence
publisher Pusat Perubatan Universiti Kebangsaan Malaysia
publishDate 2017
url http://journalarticle.ukm.my/12282/
http://journalarticle.ukm.my/12282/
http://journalarticle.ukm.my/12282/1/6._tan_et_al.pdf
first_indexed 2023-09-18T20:02:15Z
last_indexed 2023-09-18T20:02:15Z
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