畸股瘤是来源于多能的胚胎细胞的肿瘤，最常发生于卵巢和睾丸，偶可见于颈、纵隔、骶部、松果体及腹膜后等部位，发生于耳后者罕见，我科曾遇2例，报道如下。例1女，14岁。偶然发现有耳后无痛性肿物20余天，检查右耳廓后立方耳廓与乳突交界处可见紫蓝色肿物，约5cm×6cm×2cm大 Teratoma is a tumor derived from pluripotent embryonic cells, most commonly found in the ovary and testis, even found in the neck, mediastinum, sacral, pineal and retroperitoneal areas, rarely occurs in the ears, my department Have encountered 2 cases, reported as follows. Example 1 Female, 14 years old. Occasionally found ear painless tumor more than 20 days, check the right auricle after the junction of cubic auricle and papillae visible purple blue tumor, about 5cm × 6cm × 2cm large