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Investigation of Sonographic Criteria for Reliable Identification of T1-T2 Low-Grade Malignant Tumors of the Parotid Gland.
- Source :
-
Ultrasound in Medicine & Biology . Mar2021, Vol. 47 Issue 3, p471-477. 7p. - Publication Year :
- 2021
-
Abstract
- The aim of this study was to investigate sonographic findings of low-grade malignant tumors of the parotid gland. The sonographic findings of all patients treated for T1-T2 low-grade carcinomas of the parotid gland between 2003 and 2018 were retrospectively examined and compared with those of patients with pleomorphic adenomas for the following parameters: definition of tumor margins, echotexture, echogenicity, shape and vascularization. Statistical analysis was performed using the χ2 test. A p value of <0.05 was considered statistically significant. A total of 310 patients (62 with T1-T2 low-grade malignant tumors, 248 with pleomorphic adenomas) were evaluated. Our analysis detected a statistically significant difference in the definition of margins, echotexture, echogenicity and shape. Furthermore, we could detect a specific pattern (anechoic islets in a small hypoechoic lesion with distal enhancement) appearing far more frequently in low-grade malignant lesions. It seems that there is still potential to reduce the incidence of the false working hypothesis "benign lesion" on imaging of low-grade malignant tumors. [ABSTRACT FROM AUTHOR]
- Subjects :
- *PAROTID glands
PAROTID gland tumors
Subjects
Details
- Language :
- English
- ISSN :
- 03015629
- Volume :
- 47
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Ultrasound in Medicine & Biology
- Publication Type :
- Academic Journal
- Accession number :
- 148124070
- Full Text :
- https://doi.org/10.1016/j.ultrasmedbio.2020.11.010