报告1例右耳原发性皮肤粘液表皮样癌。患者66岁,男性白人,右耳廓后中部出现溃疡性皮损,未见其他肿瘤及局部或系统淋巴结受累,在用Mohs外科手术切除之前,行诊断性钻孔活检。标本经H-E,粘蛋白卡红及PAS染色,免疫组化经标准方法用上皮膜抗原(EMA)及癌胚抗原(CEA)染色。结果,大体标本显示一溃疡性、无包膜的乳白 One case of primary cutaneous mucoepidermoid carcinoma was reported. The patient was 66 years old, male white, with ulcerative lesions in the posterior middle of the right ear, no other tumors and local or systemic lymph node involvement, and a diagnostic hole biopsy before surgical resection with Mohs. Specimens were stained with H-E, mucin, and PAS. Immunohistochemistry was performed using standard methods for staining with epithelial membrane antigen (EMA) and carcinoembryonic antigen (CEA). As a result, the gross specimen showed an ulcerated, non-enveloped milky white