Large schwannoma of the deep peroneal nerve: a case report

Erdoğan, Barış; Yüksel, Mehmet Onur; Engin, Taner; Çakır, Aslı

doi:10.5137/1019-5149.jtn.34238-21.1

Cited by 2 publications

(7 citation statements)

References 2 publications

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“…On histopathology examination, they will show a pattern with Antoni A and B Antoni A areas have highly organized spindle cells, short parallel fascicles, and less onionlike or swirl arrangement while Antoni B domains are less cellular with myxoid tissue predominance and water-like fluid-filling abundance in cytosols and extracellular space. 2,7 In the management of schwannomas, complete surgical excision is a generally curative, reliable, and relatively safe therapeutic option with a majority of published case reports showing favorable outcomes. (See figure, Supplemental Digital Content 2, which shows palisading nuclear architecture of Antoni A region with hypocellular Antoni B areas.…”

Section: Discussionmentioning

confidence: 99%

“…Schwannomas are solitary in 90% of the cases, and 60% of benign schwannomas are vestibular schwannomas. 1 , 2 Schwannomas are the most common benign peripheral nerve sheath tumors and are frequently seen between the third and sixth decades and exhibit no gender and ethnicity preponderance. Still, cases of common peroneal nerve schwannomas are very rare in the literature, and specific involvement of the superficial peroneal nerve is exceedingly rare.…”

Section: Discussionmentioning

confidence: 99%

“…Schwannomas are usually slow growing, and only 1% undergo malignant transformation to become a neurofibrosarcoma. 2 , 4 , 6 …”

Section: Discussionmentioning

confidence: 99%

“…Antoni A areas have highly organized spindle cells, short parallel fascicles, and less onion-like or swirl arrangement while Antoni B domains are less cellular with myxoid tissue predominance and water-like fluid-filling abundance in cytosols and extracellular space. 2 , 7…”

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%

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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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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

“…Schwannomas are usually slow growing, and only 1% undergo malignant transformation to become a neurofibrosarcoma. 2 , 4 , 6 …”

Section: Discussionmentioning

confidence: 99%

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%

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