A case of schwannoma of the common peroneal nerve in the knee

Öz, Tayyar Taylan; Aktaş, Birol; Özkan, Korhan; Ozturan, Burak; Kiliç, Bülent; Demiroğlu, Murat

doi:10.4081/or.2017.6825

Cited by 10 publications

(7 citation statements)

References 4 publications

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“…Still, cases of common peroneal nerve schwannomas are very rare in the literature, and specific involvement of the superficial peroneal nerve is exceedingly rare. 3 – 5 …”

Section: Discussionmentioning

confidence: 99%

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Superficial Peroneal Nerve Schwannoma

Abebe

Weldemicheal

2023

Plastic and Reconstructive Surgery - Global Open

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Summary: Schwannomas are benign tumors of the nerve sheath that arise from the proliferation of active peripheral Schwann cells. Although schwannomas are the most common benign peripheral nerve sheath tumors, superficial peroneal nerve schwannomas are rare in published works of literature. We report a 45-year-old woman with a 4-year history of progressively worsening dull aching pain and paresthesia over the right lateral leg. Physical examination revealed a 4 × 3 cm firm palpable mass and a decreased touch and pain sensation over the lateral aspect of the right calf and dorsum of the foot. She also had an electric shock-like pain on palpation and percussion of the mass. Magnetic resonance imaging demonstrated a well-defined, oval, smooth-walled heterogeneous lesion beneath the peroneus muscle with avid postcontrast enhancement and a split fat sign. Fine needle aspiration cytology also suggested the diagnosis of schwannoma. Based on clinical findings of a mass, decreased sensation, and a positive Tinel sign on the dermatome of superficial peroneal nerve, surgical management was decided. Upon surgical exploration, a firm, glistening mass arising from the superficial peroneal nerve was identified, carefully dissected, and shelled out while maintaining continuity of the nerve. At the 5-month follow-up, the patient reported complete resolution of the pain and paresthesia. Physical examination revealed intact sensation in the lower lateral aspect of the right calf and dorsum of the foot. Therefore, surgical excision should be considered a reasonable option in the management of this rare condition, with most patients achieving good to excellent results.

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“…Still, cases of common peroneal nerve schwannomas are very rare in the literature, and specific involvement of the superficial peroneal nerve is exceedingly rare. 3 – 5 …”

Section: Discussionmentioning

confidence: 99%

“…The use of proper magnification and intraoperative nerve monitoring and mapping may also enhance the chances of achieving favorable outcome. 2 , 3 , 7 , 8 …”

Section: Discussionmentioning

confidence: 99%

Superficial Peroneal Nerve Schwannoma

Abebe

Weldemicheal

2023

Plastic and Reconstructive Surgery - Global Open

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“…11 There are a few reports of schwannomas of the knee, either subcutaneous or intraarticular. [12][13][14][15][16][17][18] A prepatellar schwannoma has been previously presented in the literature as a case of "cellular schwannoma," 19 but from the imageswhich include prominent junctional activityit seems to us that the growth is in fact a melanocytic proliferation.…”

Section: Discussionmentioning

confidence: 99%

Intramural schwannoma involving a vein

Fernández-Flores

Saeb‐Lima

2018

J Cutan Pathol

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Schwannoma involving the blood vessels is a rare phenomenon. So far, only three cases of intravascular schwannoma have been described (all of which were intraluminal), and the origin of the schwannoma in such cases is not yet completely understood. Here, we describe a very rare intramural venous schwannoma in the subcutaneous right prepatellar area of a 31‐year‐old man. The schwannoma grew by enlarging and thickening the blood vessel wall, between two preserved layers of the vein. In some areas, there was erosion of the luminal layer, with fibrin apposed to the tumor. The tumor expressed S100 and was negative for CD31, CD34, desmin, and smooth muscle actin. The expression of p16 was preserved. Endothelial markers such as CD31 and Factor VIII showed the endothelial lining (which was D2‐40‐negative) above the tumor. Although degenerative atypia was present, there were no mitotic figures or necrosis identified.

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“…Cases of common peroneal nerve schwannomas are very rare in the literature (Table 1). 2,4 They usually have a clinically silent course. Rarely, they may present as knee pain or paraesthesia due to mechanical compression of the nerve.…”

Section: Introductionmentioning

confidence: 99%

The common peroneal nerve schwannoma: A case rare case report with brief review of literature

Panchariya¹,

Bele²,

Singh³

et al. 2020

IJN

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Swelling in popliteal region is a common presentation with usual differential diagnosis of bakers cyst, ganglionic cysts. Schwannoma of common peroneal nerve although a clinically rare entity may also have similar presentation. The treatment of choice for such schwannoma is surgical excision with preservation of nerve integrity. Without knowledge of this consideration and disrespecting nerve planes during surgery may have devastating complications. We here present a similar rare case report of common peroneal nerve schwannoma with brief review of literature; the case was managed by complete surgical excision with no neurological deficit in post operated phase.

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A case of schwannoma of the common peroneal nerve in the knee

Cited by 10 publications

References 4 publications

Superficial Peroneal Nerve Schwannoma

Superficial Peroneal Nerve Schwannoma

Intramural schwannoma involving a vein

The common peroneal nerve schwannoma: A case rare case report with brief review of literature

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