Kaposi肉瘤我国较少见 ,且主要以新疆维吾尔族、哈萨克族多见 [1 ] 。汉族和其他少数民族发病极少 ,儿童发病国内罕见报道。1　临床资料1.1　临床表现 :起病时间、病程经过及既往病史 :患者男性、汉族、 12岁 ,因左腰部起结节压痛 4月疑角化棘皮瘤继发感染收住院。患儿 4月前无 Kaposi sarcoma rare in our country, and mainly in Xinjiang Uygur, Kazak more common [1]. Han and other ethnic minorities rarely occur, the incidence of children rarely reported in China. 1 Clinical data 1.1 Clinical manifestations: onset time, course of disease and past medical history: patients male, Han nationality, 12 years old, due to the left lumbar nodule tenderness in April distor cystadenocarcinoma secondary infection admitted to hospital. Children with no previous 4 months