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KMID : 0361020090520090751
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Korean Journal of Otolaryngology - Head and Neck Surgery
2009 Volume.52 No. 9 p.751 ~ p.755
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Ultrasonographic Features of the Parotid Gland Neoplasms
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Kim Ho-Kyun
Park Jun-Young
Choi Sung-Yong
Kim Jeong-Kyu
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Abstract
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Background and Objectives: Ultrasonography represents the initial imaging modality of choice for the assessment of the parotid gland tumors. The aim of this study is to evaluate the role of ultrasonography in differential diagnosis of the parotid gland tumors.
Subjects and Method: Ultrasonography of the 49 patients with parotid gland tumors were retrospectively reviewed. Histology of all cases was confirmed after parotidectomy. The ultrasonographic features of the most common two histologies, namely, pleomorphic adenoma and Warthin’s tumor, were compared.
Results: Pleomorphic adenomas were usually solid and they showed lobulation and an exophytic growth. Warthin’s tumors usually contained a cystic component, and were usually oval without lobulation and confined to the parenchyma. One of two malignancies showed well-defined margins and five benign tumors showed ill-defined margins.
Conclusion: The ultrasonographic features should be cautiously used to discriminate among the various histologies of parotid gland tumors.
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KEYWORD
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Salivary glands·Parotid gland, Ultrasonography, Salivary gland neoplasms, Parotid neoplasms
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