恶性肌上皮瘤(MME)又称上皮癌,WHO新分类中将MME描述为非典型肌上皮细胞增生形成的肿瘤,具有分裂活跃、浸润生长等特点,我科收治1例恶性肌上皮瘤,现报道如下。患者,女,38岁。主因右面颊部无痛性肿物,逐渐增大4个月收住我科。入院后查体见患者左侧面颊部咬肌区有一约2.5cm×5.0c Malignant myoepithelioma (MME), also known as epithelial cancer, the WHO classification of the new MME described as atypical myoepithelial hyperplasia of the tumor, with active division, infiltration of growth and other characteristics of our department admitted a case of malignant myoepithelioma, now Reported as follows. Patient, female, 38 years old. The main right cheek painless mass, gradually increased 4 months to receive our department. After admission, the patient found on the left cheek area masseter area has a about 2.5cm × 5.0c