Giant Schwannoma of ulnar nerve: case report

Rodrigues, André Sá; Vidinha, Vítor; Pinto, Rui; Negrão, Pedro

doi:10.1016/j.rboe.2016.05.005

Cited by 2 publications

(10 citation statements)

References 13 publications

(15 reference statements)

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“…4 Peripheral nerve tumors are usually asymptomatic, though the symptoms appear when the lesions grow and produce mass effect, being able to generate edema, paresthesia, loss of muscle strength, and pain. 2,5 The Tinel sign is usually present around the tumor. 2 In case of involvement of the vagus nerve, they can cause dysphagia.…”

Section: Discussionmentioning

confidence: 99%

“…2,5 The Tinel sign is usually present around the tumor. 2 In case of involvement of the vagus nerve, they can cause dysphagia. 5 Even with a positive sign, paresthesias and transverse mobility, the clinical identification is somewhat subjective and, for this reason, nerve tumors are often misdiagnosed because of similarities with other soft tissue tumors such as lipomas, fibromas, ganglions, or xanthomas.…”

Section: Discussionmentioning

confidence: 99%

“…2,3 They are derivatives of the peripheral nerve sheath, develop eccentrically for nerve fibers, being typically encapsulated by the epineurium, so that they do not perform nerve invasion, only compression. [2][3][4]8 They can be diagnosed at any age, but are most common between the ages of 20 and 50 years old. 4,8 They usually are small, slow-growing, solitary lesions.…”

Section: Discussionmentioning

confidence: 99%

“…5 Even with a positive sign, paresthesias and transverse mobility, the clinical identification is somewhat subjective and, for this reason, nerve tumors are often misdiagnosed because of similarities with other soft tissue tumors such as lipomas, fibromas, ganglions, or xanthomas. 2 Although neurogenic tumors can be diagnosed on magnetic resonance imaging (MRI), it is difficult to differentiate between schwannomas and neurofibromas. 8 Schwannomas and neurofibromas share many morphological features in the MRI image.…”

Section: Discussionmentioning

confidence: 99%

“…1 Among the lesions that can affect the peripheral nerves, primary neural tumors represent 5% of the soft tissue neoplasms of the upper limbs. 2,3 The main peripheral nerve tumors and tumor-like lesions are: traumatic neuromas, Morton neuromas, neural fibrolipomas, nerve sheath ganglions, benign peripheral nerve sheath tumors (PNSTs), schwannomas, neurofibromas, and malignant neoplasms called malignant PNSTs. 1 Benign nerve tumors are much more common than malignant ones, with schwannomas and neurofibromas representing the most frequent neoplasms.…”

Section: Introductionmentioning

confidence: 99%

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Epidemiology and Estimated Cost of Microsurgical Treatment of Peripheral Nerve Tumor Conducted by the Brazilian Unified Health Care System (2008–2016)

Magalhães¹,

Mendes²,

Oliva

2019

Arq Bras Neurocir

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Introduction Primary nerve tumors correspond to ∼ 5% of the soft tissue neoplasms affecting the upper limbs, with benign lesions being more frequent than malignant lesions. Objective To describe the epidemiological data of the microsurgical treatment of peripheral nerve tumors performed by the Brazilian Unified Health System (SUS, in the Portuguese acronym), with the code 0403020131, from 2008 to 2016, regarding the number of annual procedures, hospital and professional expenses, the average duration of hospital stay, and the number of deaths. Methods This is a descriptive epidemiological study whose data were obtained by consulting the database provided by the Health Informatics Department of the Brazilian Ministry of Health (DATASUS, in the Portuguese acronym). Results/Discussion A total of 6,012 procedures were performed during the period studied, with an average of 688 procedures per year. The average hospital stay was of 2.13 days. There was no mortality rate. The average annual cost of the professional was BRL 50,091.45; and the average hospital expenses were BRL111,887.94. Conclusion The microsurgical treatment of peripheral nerve tumors is a safe surgical procedure with zero mortality rate and short hospital stay. There was no national data on tumors of this nature in the medical literature.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Epidemiology and Estimated Cost of Microsurgical Treatment of Peripheral Nerve Tumor Conducted by the Brazilian Unified Health Care System (2008–2016)

Magalhães¹,

Mendes²,

Oliva

2019

Arq Bras Neurocir

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Schwannoma of the Upper Limb: Retrospective Study of a Rare Tumor with Uncommon Locations

et al. 2022

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Background: Although schwannoma (neurilemmoma) is the most common tumor of the peripheral nerve, its low incidence, slow growth and vague symptoms often lead to misdiagnosis or delayed diagnosis. The aim of the study is to present a series with a large number of schwannomas in the upper limbs, some with very rare occurrence. Methods: We report 17 patients with a mean age of 58.5 years and upper limb schwannomas, located on the median, ulnar and radial nerves, but also on the posterior interosseous nerve and digital collateral nerves. The diagnosis was made by clinical examination and imaging tests, and in no case was a preoperative biopsy performed. Surgical treatment was established based on symptoms or aesthetic concerns. In all cases, a diagnosis of schwannoma was confirmed through histopathological and immunohistochemical examinations. Results: For all patients, a complete tumor enucleation was performed under a surgical microscope. No recurrence was recorded at 2 years after surgery. Patient satisfaction was good, with complete socio-professional integration in all cases. Conclusions: Although more frequently present on the main nerve trunks, schwannoma may be present on the collateral digital nerves in rare cases. A correct technique with complete tumor excision offers excellent postoperative outcomes and avoids recurrences.

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Giant Schwannoma of ulnar nerve: case report

Cited by 2 publications

References 13 publications

Epidemiology and Estimated Cost of Microsurgical Treatment of Peripheral Nerve Tumor Conducted by the Brazilian Unified Health Care System (2008–2016)

Epidemiology and Estimated Cost of Microsurgical Treatment of Peripheral Nerve Tumor Conducted by the Brazilian Unified Health Care System (2008–2016)

Schwannoma of the Upper Limb: Retrospective Study of a Rare Tumor with Uncommon Locations

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