20例肾胚胎瘤患儿中18例是晚期病人。全部病人均于发现包块前一周～半年(平均50天)在各地儿科门诊以发烧为主诉就诊过,都被诊断为“上呼吸道感染”。3例腹部包块被诊断为肝癌或脾肿大而收住儿科。作者认为,对于不明原因的经常发烧的儿童应疑及该肿瘤。B型超声波有助于早期发现肾胚胎瘤。 Twenty-eight of 20 children with renal blastoma were late-stage patients. All patients were diagnosed as “upper respiratory tract infection” when they found that fever was the chief complaint in pediatric clinics around the week before the discovery of mass (average 50 days). Three cases of abdominal mass were diagnosed with liver cancer or splenomegaly and received pediatric. The authors believe that for unexplained children with frequent fever should be suspected of the tumor. B-mode ultrasound helps early detection of renal embryo tumors.