Journal of clinical ultrasound : JCU · 2026
Ultrasonographic Characteristics of Lingual Schwannomas: A Retrospective Observational Study.
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Luo Weidong, Gong Jian, Zhao Qin, Luo Yujie, Jia Yiping
Аннотация
OBJECTIVE: To characterize the multimodal ultrasonographic features of lingual schwannomas and evaluate their diagnostic value in clinical practice.
METHODS: This retrospective study included five patients with histopathologically confirmed lingual schwannomas treated between 2018 and 2020. All patients underwent preoperative grayscale ultrasound and Color Doppler Flow Imaging, and contrast-enhanced ultrasound (CEUS) was additionally performed in one patient. Sonographic features-including lesion location, morphology, echogenicity, posterior acoustic characteristics, capsule presence, vascularity (Adler scale), spectral Doppler parameters, and CEUS enhancement patterns-were analyzed.
RESULTS: All lesions (mean maximum diameter, 15.6 ± 2.7 mm) were located within the intrinsic musculature of the tongue. Grayscale ultrasound exhibited well-defined, homogeneous hypoechoic masses with posterior acoustic enhancement and oval or ellipsoid morphology. A distinct capsule was observed in three cases. Color Doppler imaging demonstrated low intralesional vascularity, with four lesions classified as Adler Grade 1 and one as Grade 2. Spectral Doppler demonstrated high-resistance arterial flow (resistive index, 0.69-0.81). In the representative case examined with CEUS, the lesion exhibited slow wash-in and slow wash-out with homogeneous centrifugal enhancement and clear delineation from surrounding tissues.
CONCLUSION: Lingual schwannomas in this series exhibited a set of recurrent ultrasonographic features that may aid preoperative diagnosis and support ultrasonography as a first-line imaging modality.
METHODS: This retrospective study included five patients with histopathologically confirmed lingual schwannomas treated between 2018 and 2020. All patients underwent preoperative grayscale ultrasound and Color Doppler Flow Imaging, and contrast-enhanced ultrasound (CEUS) was additionally performed in one patient. Sonographic features-including lesion location, morphology, echogenicity, posterior acoustic characteristics, capsule presence, vascularity (Adler scale), spectral Doppler parameters, and CEUS enhancement patterns-were analyzed.
RESULTS: All lesions (mean maximum diameter, 15.6 ± 2.7 mm) were located within the intrinsic musculature of the tongue. Grayscale ultrasound exhibited well-defined, homogeneous hypoechoic masses with posterior acoustic enhancement and oval or ellipsoid morphology. A distinct capsule was observed in three cases. Color Doppler imaging demonstrated low intralesional vascularity, with four lesions classified as Adler Grade 1 and one as Grade 2. Spectral Doppler demonstrated high-resistance arterial flow (resistive index, 0.69-0.81). In the representative case examined with CEUS, the lesion exhibited slow wash-in and slow wash-out with homogeneous centrifugal enhancement and clear delineation from surrounding tissues.
CONCLUSION: Lingual schwannomas in this series exhibited a set of recurrent ultrasonographic features that may aid preoperative diagnosis and support ultrasonography as a first-line imaging modality.