I like your guy's differential diagnosis. This patient had the same tumor 10 years ago and was diagnosed "pleomorphic adenoma" in an outside institution. Now, it appears that it has recurred. I am taking two more photos. Is this time "pleomorphic adenoma" again or something else? (译文:我很欣赏大家的鉴别诊断,患者10年前在外院诊断为多形性腺瘤,现在似乎是复发,我又提供两幅图,,这次它是其它肿瘤还是混合瘤复发?)