涎腺黏液表皮样癌的超声表现。
Ultrasonographic appearances of mucoepidermoid carcinoma of the salivary glands.
机构信息
Department of Ultrasound, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
出版信息
Oral Surg Oral Med Oral Pathol Oral Radiol. 2012 Sep;114(3):382-7. doi: 10.1016/j.oooo.2012.04.014.
OBJECTIVE
The objective of this study was to investigate the ability of sonography for diagnosis of mucoepidermoid carcinoma (MEC) in the salivary glands.
STUDY DESIGN
Sonographic images of 74 cases were analyzed retrospectively; the features evaluated included size, echogenicity, shape, internal structure, distal acoustic enhancement, and regional lymph node enlargement and vascularization, and categorized them into 3 groups based on histology (low, intermediate, and high grade).
RESULTS
The lesion size of low-grade MEC was smaller than those of intermediate- and high-grade MEC. MEC lesions of the salivary glands were mostly associated with heterogeneous echotexture, indistinct margins, irregular shape, and absence of distal acoustic enhancement. They sometimes showed cystic areas, calcifications, regional lymph node enlargement, or were well vascularized on Doppler. There were no significant sonographic differences in low-, intermediate-, and high-grade MEC.
CONCLUSIONS
Salivary MEC presents a variety of sonographic appearances, which would aid in the diagnosis of salivary MEC.
目的
本研究旨在探讨超声在诊断涎腺黏液表皮样癌（MEC）中的作用。
研究设计
回顾性分析 74 例患者的超声图像，评估的特征包括大小、回声、形状、内部结构、远场回声增强、区域淋巴结肿大和血管化，并根据组织学（低、中、高级）将其分为 3 组。
结果
低级别 MEC 的病变大小小于中级别和高级别 MEC。涎腺 MEC 病变多伴有不均匀回声、边界不清、形态不规则、无远场回声增强。它们有时表现为囊性区域、钙化、区域淋巴结肿大，或在多普勒上表现为血流丰富。低、中、高级别 MEC 的超声表现无显著差异。
结论
涎腺 MEC 呈现出多种超声表现，有助于诊断涎腺 MEC。
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