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Ultrasound procedure for the diagnosis of mass lesions in the oral region

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Abstract

Objectives

To examine the diagnostic usefulness and procedures of ultrasonography (US) for mass lesions in the soft tissue of the oral region.

Methods

This study involved patients with mass lesions (tumorous lesions and cysts) who had undergone US and histopathological examinations from January 2017 to December 2019. The following points were evaluated by two observers using an evaluation scale: vascularity, echo intensity level, boundary, margin shape, distribution of internal echoes, and capsule. The usefulness of each point for differential diagnosis of tumorous lesions and cysts was statistically analyzed.

Results

Forty-five mass lesions in the soft tissue of the oral region (33 tumorous lesions and 12 cysts) were analyzed. There were significant differences in four evaluation points between the tumorous lesions and cysts: vascularity, echo intensity level, boundary, and margin shape. Cysts were almost completely excluded diagnostically, especially when vascularity was observed. There were also significant differences in two evaluation points between nonvascular tumorous lesions and cysts: echo intensity level and boundary.

Conclusions

In US examination for mass lesions in the oral region, it was possible to diagnose tumorous lesions and exclude cysts when vascularity was observed. When vascularity was not observed, however, tumorous lesions and cysts could be identified using two evaluation points: echo intensity level and boundary.

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Acknowledgements

We thank Angela Morben, DVM, ELS, from Edanz (https://jp.edanz.com/ac) for editing a draft of this manuscript.

Funding

This work was supported by JSPS KAKENHI grant number 20K18667.

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Correspondence to Toshiyuki Kawazu.

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Conflicts of interest

Takeshita Y, Kawazu T, Hisatomi M, Okada S, Fujikura M, Yoshida S, Namba Y, Shimizu Y, Yanagi Y, Asaumi J declare that they have no conflict of interest.

Ethics approval

All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2008 (5).

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Informed consent was obtained from all patients for being included in the study.

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Takeshita, Y., Kawazu, T., Hisatomi, M. et al. Ultrasound procedure for the diagnosis of mass lesions in the oral region. Oral Radiol 39, 93–100 (2023). https://doi.org/10.1007/s11282-022-00605-2

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  • DOI: https://doi.org/10.1007/s11282-022-00605-2

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