耳前肌上皮癌1例

Primary myoepithelial carcinoma of the preauricular area in a young female:a rare case report

肌上皮癌是主要发生于涎腺的恶性肿瘤，少数发生于鼻腔、鼻窦、乳腺、肺、咽旁隙等部位。肌上皮癌发生率低，目前对其细胞学认识、诊断及治疗还存在着很大的争议。原发于耳前软组织的肌上皮癌少见，我科于2012年10月诊治1例，报告如下。

Summary A female patient with a dark red mass in the of preaurieular area for over 3 months was hospital- ized. Enhanced CT scan and ultrasonography showed that the mass had clear boundaries and was rich in blood sup- ply. The patient was misdiagnosed as preauricular hemangioma, then the mass was removed as a benign tumor and found irrelevant to parot, SMA（＋ ）, Vim （ ＋）, S-100 （ ＋ ）, indicating myoepithelial carcinoma. So a radical exci- sion was performed to get negative incised margin. The patient didn＇t undergo postoperative chemotherapy but demonstrated no evidence of recurrence over a 12-month follow-up.