Can the ultrasound echogenicity of normal parotid and submandibular glands be used as a reference standard for normal thyroid echogenicity?

Purpose: This study aimed to determine whether the normal parotid gland (PG) and submandibular gland (SMG) can be used as reference standards for normal thyroid echogenicity.Methods: In total, 1,302 consecutive patients with normal salivary glands were included in this study. The echogenicity of the...

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Bibliographic Details
Published in:Ultrasonography (Seoul, Korea) 2022, 41(4), , pp.678-688
Main Author: Choi, Insik
Format: Article
Language:English
Subjects:
Age groups
Exocrine glands
Neck
Original
parotid gland
Patients
submandibular gland
Thyroid diseases
thyroid gland
Ultrasonic imaging
ultrasonography
방사선과학
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Summary:Purpose: This study aimed to determine whether the normal parotid gland (PG) and submandibular gland (SMG) can be used as reference standards for normal thyroid echogenicity.Methods: In total, 1,302 consecutive patients with normal salivary glands were included in this study. The echogenicity of the SMG and PG was assessed during real-time ultrasound examinations, and the glands were categorized as hyperechogenic, isoechogenic, and hypoechogenic relative to the thyroid parenchyma in patients without diffuse thyroid disease (group 1, n=1,106) and with diffuse thyroid disease (group 2, n=196). The frequency of the echogenicity categories of the normal PG and SMG was assessed according to patients’ age.Results: In group 1, the normal PG showed isoechogenicity in 94.0% and hypoechogenicity or hyperechogenicity in 6.0%, and the normal SMG showed isoechogenicity in 73.6% and hypoechogenicity in 26.4% of patients (P
ISSN:2288-5919
2288-5943
DOI:10.14366/usg.21254