High-resolution ultrasonography and shear-wave sonoelastography of a cystic radial nerve Schwannoma

Battaglia, Patrick J.; Carbone-Hobbs, Vivian; Guebert, Gary M.; Mackinnon, Susan E.; Kettner, Norman W.

doi:10.1007/s40477-017-0254-5

Cited by 7 publications

(3 citation statements)

References 22 publications

(47 reference statements)

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“…This difference might be attributed to the relative proximity of the radial nerve at this site to the humerus. Battaglia et al 25 studied a single case of benign peripheral nerve schwannoma of the radial nerve and found that the elasticity ranged from 24 to 30 kPa by SWE, coinciding with its soft consistency and benign nature. The authors referred to the reference values of other musculoskeletal structures to indicate the benign nature of the lesion.…”

Section: Discussionmentioning

confidence: 99%

Shear wave elastography of the radial nerve in healthy subjects

et al. 2021

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Objective This study was performed to examine the sonoelastographic features of the radial nerve in healthy subjects. Methods In this observational cross-sectional study, shear wave elastography was used to evaluate the radial nerve. The cross-sectional area and stiffness were measured. Results The study included 37 nerves in 20 healthy adult subjects. The mean cross-sectional area of the radial nerve at the arm was 6.1 mm2. The mean stiffness of the radial nerve in the short axis was 30.3 kPa, and that in the long axis was 34.9 kPa. The elasticity measurements were significantly different between the long axis and short axis. Conclusion The elastic modulus of the radial nerve was studied in healthy subjects and can serve as a reference for future assessment of different radial nerve pathologies.

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Section: Discussionmentioning

confidence: 99%

Shear wave elastography of the radial nerve in healthy subjects

et al. 2021

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“…Battaglia et al (26) described a case of cystic radial nerve schwannoma diagnosed using high-resolution ultrasonography, emphasizing the value of US in the diagnosis and management of the patient. The case listed “contiguity of the tumor with the nerve of origin” as one of the signs clearly observed on US.…”

Section: Discussionmentioning

confidence: 99%

Diagnostic accuracy of multiparametric ultrasound for peripheral nerve schwannoma

et al. 2022

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Background Ultrasound (US) diagnostic techniques have the advantages of low cost, convenient operation, and high availability. Purpose To explore the diagnostic accuracy of multiparametric US in evaluating signs of peripheral schwannoma. Material and Methods This retrospective case-control study included patients with soft-tissue masses on the limbs (divided into the schwannoma and non-schwannoma groups) between January 2017 and November 2020. US features were compared between the two groups, and receiver operating characteristics analysis was used to evaluate the diagnostic efficacy of these features. Results A total of 165 patients were included in this study; of them, 63 (38.2%) were diagnosed with schwannoma. Regular morphology (95.2% vs. 39.2%), cystic degeneration (71.4% vs. 27.5%), target sign on elastography (82.5% vs. 0), and polar blood supply sign (87.3% vs. 14.7%) were more common in schwannomas than in non-schwannoma lesions (all P < 0.001). Combining the four signs for diagnosis of schwannomas, the sensitivity, specificity, and accuracy were 95.24%, 96.08%, and 95.76%, respectively, with an area under the curve (AUC) of 0.987 (95% confidence interval = 0.955–0.998). Entering and exiting nerve sign was observed in 87.3% of schwannomas and in 3.0% of non-schwannoma lesions ( P < 0.001), while split-fat sign was similar between the two groups (9.5% vs. 2.0%; P = 0.068). Conclusion Polar blood supply sign and target sign on elastography are specific US signs in peripheral schwannomas. The combination of two-dimensional imaging, color flow imaging, and elastography can achieve an excellent diagnostic accuracy in schwannomas.

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“…Batagalia et al had reported a case of cystic degeneration of schwannoma of the deep branch of radial nerve. The sonographic features that enabled them to clinch the diagnosis were eccentric location, continuation with the nerve and stiffness of the lesion measured with shear wave sonoelastography [7].…”

Section: Discussionmentioning

confidence: 99%