例1女,4岁。于2004年6月住院。患儿家长2002年12月发现其右耳前一渐隆起的囊性包块,位于皮下,无特殊不适,未予重视,8个月后逐渐增至20 mm×15 mm,方来我院就诊,并于2004年6月24日在全身麻醉下行手术切除,病理学检查,报告为毛母质瘤。术后随访8个月未复发。例2女,9岁。于2004年7 Example 1 Female, 4 years old. In June 2004 hospitalized. In December 2002, parents of children with infiltrating cystic mass showed a gradual swelling of the right ear, located subcutaneously, without special discomfort, and paid no attention to it. After 8 months, they gradually increased to 20 mm × 15 mm , And in June 24, 2004 under general anesthesia surgical excision, pathological examination, the report was hairy tumor. No follow-up 8 months follow-up. Example 2 Female, 9 years old. In 2004 7