Subperiosteal schwannomas of the femur

Rr, Verma; Mt, Khan; Am, Davies; Mangham, D. C.; Grimer, RJ

doi:10.1007/s00256-002-0520-1

Cited by 11 publications

(4 citation statements)

References 13 publications

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“…Imaging is the most important diagnostic tool for the evaluation of patients with suspected schwannomas [ 15 ]; the radiographs can help in localizing the lesion with subperiosteal or intraosseous localization. The radiographic appearances of periosteal schwannomas mentioned in the available case reports are variable; the most constant feature is the presence of a lytic lesion, which was mentioned in nearly all reported cases including our case [ 4 , 5 , 7 , 8 ]. Patro et al have reported a unique case of subperiosteal schwannoma with normal-appearing radiographs despite the long and extended course of their patient's disease (two years) [ 6 ].…”

Section: Discussionmentioning

confidence: 82%

“…The first case of subperiosteal schwannoma was reported by Verma et al in 2002 when they described two adjacent diaphyseal femoral subperiosteal schwannomas in a 38-year-old man, who had been suffering from thigh weakness and pain [4] for four years. The second case was reported by Singh et al in 2005, when they reported a subperiosteal schwannoma arising from the surface of the diaphysis of the ulna in a 28-year-old female patient that showed up as painful swelling [5].…”

Section: Discussionmentioning

confidence: 99%

“…It is a rare condition and usually occurs in soft tissues [ 3 ]. In extremely rare cases, schwannomas can present on the bone surface as subperiosteal neoplasm, and this rare condition has been described and reported in only five documented cases so far [ 4 - 8 ]. Herein, we present the sixth case report documenting this rare condition.…”

Section: Introductionmentioning

confidence: 99%

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Subperiosteal Schwannoma of the Mid-Tibia: A Cause of Long-Lasting Unexplained Pain

Moussa¹,

El-Yahchouchi²,

Lahoud³

et al. 2020

Cureus

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Schwannomas are benign tumors affecting the nerve sheath. Their presence in the subperiosteal region is extremely rare. We report a case of a 66-year-old male patient with a 10year history of unexplained pain of the anterior leg that turned out to be caused by a subperiosteal schwannoma of the mid-tibia. We believe this case report will increase surgeons' index of suspicion about this condition when dealing with cases of unexplained bony pain, consequently allowing for early diagnosis and better outcomes.

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Section: Discussionmentioning

confidence: 82%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Subperiosteal Schwannoma of the Mid-Tibia: A Cause of Long-Lasting Unexplained Pain

Moussa¹,

El-Yahchouchi²,

Lahoud³

et al. 2020

Cureus

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“…[7]199117 years MPainDistal femur>6 cmCentral, osteolyticNED 1 yearVerma et al . [6]200238 years MPainMid femur2.2 cmEccentric, cortical scallopingNED 2 yearsHoshi et al . [4]201244 years FPainNeck femur9.1 cmEccentric, osteolyticNED 2 monthsWang et al .…”

Section: Discussionmentioning

confidence: 99%

Large schwannoma of the femur – a common tumor at an unusual site: a case report and review of the literature

2017

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BackgroundSchwannomas are benign nerve sheath tumors and are most frequently encountered as soft tissue tumors of peripheral nerves of the head and neck or the extensor extremities. Osseous involvement is very uncommon with fewer than 200 cases described in the world literature, the majority of which arise in the skull (including mandible), vertebrae, and sacrum. Long bone involvement is highly unusual and of the approximately 20 cases described thus far, only five have been documented to arise in the femur. We describe an unusually large schwannoma of the femur which was discovered incidentally and was diagnosed only after biopsy, given the rarity of this tumor at that particular site. Following prophylactic internal fixation and bone grafting, our patient remains well and disease-free, 2.5 years later.Case presentationA 56-year-old Sri Lankan woman was discovered to have a large lytic lesion in her lower femur on routine X-ray following a fall. A history and physical examination, along with selective imaging and tissue sampling, were necessary to arrive at the diagnosis of schwannoma of the femur. The clinical presentation, radiology, pathology, and surgical management are discussed and contrasted with the other five cases documented in the literature. The tumor was successfully treated with evacuation through a lateral surgical approach and internal fixation. She remains well and disease-free 2.5 years later.ConclusionsWe present the case of an unusually large lytic lesion found incidentally in the femur of a 56-year-old woman, which was subsequently diagnosed to be a schwannoma on biopsy. Its exceptional rarity in long bones makes it less likely to be considered in an initial differential diagnosis, and we stress the importance of tissue biopsy for diagnosis.

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Neurilemmoma

Bahk

2023

Diagnosis and Management of Primary Bone Tumors

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Subperiosteal schwannomas of the femur

Cited by 11 publications

References 13 publications

Subperiosteal Schwannoma of the Mid-Tibia: A Cause of Long-Lasting Unexplained Pain

Subperiosteal Schwannoma of the Mid-Tibia: A Cause of Long-Lasting Unexplained Pain

Large schwannoma of the femur – a common tumor at an unusual site: a case report and review of the literature

Neurilemmoma

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