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患女,32岁。发现左腮腺无痛性肿块3月。查体:左腮腺部可摸到2cm×2.8cm大小的肿块,表面光滑,活动受限,质硬,无压痛。入院诊断:左腮腺混合瘤。术中发现肿块位于腮腺深叶,面神经下颌支贯穿肿块,经分离将肿块切除。病理检查:组织2块,大者2.2cm×2cm×0.6cm,无包膜,切面灰白-灰黄色,质硬,外周有少量脂肪组织。显微镜下除肿块边缘尚残留少量腮腺组织外,几乎由淋巴组织替代,导管上皮增生,肌“上皮岛”形成,部
She is 32 years old. Painless mass of left parotid gland was found in March. Physical examination: The left parotid gland can touch a mass of 2cm x 2.8cm in size, with a smooth surface, limited mobility, hard quality, and no tenderness. Admission diagnosis: mixed tumor of left parotid gland. The tumor was located in the deep lobe of the parotid gland during surgery. The mandibular branch of the facial nerve penetrated through the mass and the mass was removed after separation. Pathological examination: Two tissues, 2.2cm×2cm×0.6cm in size, no capsule, grayish-yellow cut surface, hard, and a small amount of adipose tissue around the periphery. Under the microscope, except for a small amount of salivary gland tissue remaining on the edge of the mass, almost replaced by the lymphoid tissue, the ductal epithelial hyperplasia, and the muscular “epithelial island” formed.