双原发性恶性肿瘤，又名双重癌，临床上较少见，现报告一例如下。患者女性，60岁，农民，因咽部不适、右扁桃体肿大3月，于1991年6月在我院活检病理报告为“右扁桃体未分化癌”。查体见患者全身浅表淋巴结不及肿大，右侧扁桃体呈菜花样肿大，约3cm×2.5cm。其余未发现异常体征。~ Double primary malignant tumor, also known as double cancer, clinically rare, a report is as follows. Female patient, 60 years old, farmer, due to pharyngeal discomfort, right tonsil enlargement March, in June 1991 in our hospital biopsy reported as “right tonsil undifferentiated carcinoma ”. Physical examination of patients with systemic superficial lymph nodes less than enlarged, right tonsil cauliflower swollen, about 3cm × 2.5cm. The rest did not find abnormal signs. ~