摘要：患者女,9岁。左侧耳下肿物2年余。体检：左侧腮腺区可触及一肿物,大小为3.1 cm×2.4 cm,质硬,边界清,活动度尚可,肿物表面光滑,无压痛,未闻及血管杂音。颈部彩色多普勒超声检查诊断：左侧腮腺区实质性包块（良性可能）;双侧腮腺区见多个肿大淋巴结。腮腺MRI平扫及增强扫描：
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