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外耳道多形性腺瘤少见,我们于1972年及1989年各确诊1例,报告如下.例1:女,48岁.发现右耳道口肿块近10年,偶有疼痛,半年来听力下降.检查:见右耳道口肿块直径约1cm,质地较硬,有压痛,左耳无殊.局麻下行右耳道口肿块切除术.病理检查:肿块1.2×1×1cm,质地较硬,软骨样,有包膜,切面灰白色,部分区域呈半透明状.镜下瘤组织由粘液软骨样基质及散布其间的上皮细胞团、索构成,瘤细胞分化良好,无异型.诊断:(右外耳道)多形性腺瘤.术后失访.
Atypical pleomorphic adenomas of the external auditory canal are rare. We diagnosed one patient each in 1972 and 1989. The report is as follows. Example 1: Female, 48 years old. A lump in the right ear canal was found in the past 10 years with occasional pain and hearing loss in the past six months. See the right ear canal mouth diameter of about 1cm, texture is hard, tenderness, left ear is not special. Local anesthesia under the right ear mouth lumpectomy. Pathological examination: mass 1.2 × 1 × 1cm, hard texture, cartilage-like, with a bag Membrane, gray surface, partial translucent. Microscopic tumor tissue consists of mucinous cartilage matrix and spread between the epithelial cell group, cable, tumor cells differentiate well, no abnormal. Diagnosis: (right external auditory meatus) pleomorphic adenoma Lost after surgery.