Elastographic and contrast-enhanced ultrasound features of a benign schwannoma of the common fibular nerve

Cantisani, Vito; Orsogna, N.; Porfiri, Andrea; Fioravanti, Cristina; Dambrosio, F

doi:10.1007/s40477-013-0027-8

Cited by 8 publications

(4 citation statements)

References 14 publications

(18 reference statements)

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“…Only 3 cases of peripheral nerves schwannomas were studied with CEUS, and 1 with combined CEUS and UE. [ 12 – 14 ] These 3 schwannomas were located in the liver, pancreas, and the common fibular nerve. Both hepatic and pancreatic nodules contained multiple cysts with mixed internal septations and solid areas on CEUS, similar to the MRI findings.…”

Section: Discussionmentioning

confidence: 99%

Multimodal ultrasound imaging of primary thyroid schwannoma

Zhao

Feng

et al. 2021

Medicine

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Rationale: Primary schwannoma of the thyroid gland is very rare, and its preoperative diagnosis is difficult. Patient concerns: We report the case of a thyroid nodule in an 18-year-old woman, who presented with a mass in her left neck with stiffness and normal thyroid function. However, the patient complained of numbness in her left upper extremity, and ultrasound (US) features were suspicious of malignancy. Diagnoses: Multimodal US imaging was performed using B-mode, color doppler, ultrasonic elastography (UE), and contrast-enhanced ultrasound (CEUS). CEUS revealed heterogeneous enhancement and “target sign” within the tumor. The nodule was suspicious for malignancy and classified as TI-RADS 4b, while the elasticity values measured by UE indicated a benign lesion. Fine needle aspiration (FNA) was subsequently performed in the markedly contrast-enhanced area for biopsy. Cytological results revealed a benign schwannoma. Intervention: The patient underwent left lobe resection. Postoperative pathology confirmed it to be a primary benign schwannoma of the thyroid. Outcomes: After thyroidectomy, the patient was followed-up with US. At present, all laboratory tests and thyroid imaging are normal, and the numbness of the left upper limb has disappeared. Lessons: The combination of different US modalities is useful for the diagnosis of thyroid lesions. FNA performed under CEUS guidance improves the accuracy of biopsy sampling.

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Section: Discussionmentioning

confidence: 99%

Multimodal ultrasound imaging of primary thyroid schwannoma

Zhao

Feng

et al. 2021

Medicine

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“…Cantisani et al studied a case of a schwannoma of the common fibular nerve, which was shown to be of higher stiffness compared with the surrounding tissue depending on the color scale and not velocity or numeric kilopascal measurement. [ 35 ] In our study, we found significant statistical difference in stiffness between both axes with higher stiffness values at the long axis compared with the SA, using both methods of stiffness measurements. This could be attributed to the relative proximity of common fibular nerve to the fibular head.…”

Section: Discussionmentioning

confidence: 47%

Shear wave elastography of the common fibular nerve at the fibular head

et al. 2022

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The aim of this work is to study the sonoelastographic features of the common fibular nerve in healthy adult subjects.This is an observational cross-sectional study. Shear wave elastography was used to evaluate the common fibular nerve. Crosssectional area and stiffness were measured in kilopascal (kPa) and meters/second (m/s).The study included 82 common fibular nerves in 41 healthy adult subjects. The mean cross-sectional area of the common fibular nerve at the fibular head was 8.7 mm 2 . Positive correlation was noted between stiffness measurements between short and long axes by both methods. The mean stiffness of the common fibular nerve in the short axis was 22.5 kPa, and in the long axis (LA) was 35.4 kPa. Positive correlation was noted between height and stiffness measured by both methods in both axes by kPa. In m/s, the mean stiffness of the common fibular in the short axis was 2.6 m/s, and while in the LA was 3.4 m/s. Height showed positive correlation with both axes for stiff measurements in m\s. Weight showed positive correlation with stiffness measurements by m/s in the LA.The results obtained in our study could be a reference point for evaluating stiffness of the common fibular nerve in research involving different pathologies.Abbreviations: BMI = body mass index, CSA = cross-sectional area, kPa = kilopascal, LA = long axis, m/s = meters/second, SA = short axis, SWE = shear wave elastography.

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“…However, one of their figures was of a cystic nerve Schwannoma, with soft SWE values displayed (1.08 m/s vs a mean of 2.20 m/s for benign lesions) [21]. The only report specific to US elastography of peripheral nerves is a case using qualitative strain-based elastography of a common fibular nerve Schwannoma [22]. In this report, elastography demonstrated that the Schwannoma was harder compared to surrounding muscle.…”

Section: Discussionmentioning

confidence: 73%

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

et al. 2017

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Peripheral nerve tumors are often evaluated with magnetic resonance imaging (MRI), although there are many advantages offered with high-resolution ultrasonography (HRUS). This case report emphasizes the value of HRUS in the diagnosis and management of a patient with a cystic radial nerve Schwannoma. In addition, information on tumor stiffness, obtained with shear-wave sonoelastography (SWE), is presented.

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Elastographic and contrast-enhanced ultrasound features of a benign schwannoma of the common fibular nerve

Cited by 8 publications

References 14 publications

Multimodal ultrasound imaging of primary thyroid schwannoma

Multimodal ultrasound imaging of primary thyroid schwannoma

Shear wave elastography of the common fibular nerve at the fibular head

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

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