肾胚胎瘤多见于4岁以内小儿,新生儿罕见。兹报告1例子下。病例报告患儿,女,28天。10余天前因腹泻在某医院检查时发现腹部肿块而来院。查体:发育正常,皮肤无黄染,浅表淋巴结无肿大。心肺无异常。腹软,左上腹扪及约8×9厘米大肿块,质较硬,边界尚清楚,表面光滑,不活动,上界达肋弓,下界位于髂棘上方,叩诊实音。化验:尿红细胞少量,X线 Kidney embryo more common in children less than 4 years of age, neonatal rare. Here’s a report under one example. Case report children, female, 28 days. More than 10 days ago because of diarrhea in a hospital examination found abdominal mass and hospital. Physical examination: normal development, no yellow skin, superficial lymph nodes without swelling. No abnormal heart and lung. Abdomen soft, left upper abdomen palpable about 8 × 9 cm large mass, hard quality, the boundary is clear, the surface is smooth, inactive, the upper limit of rib arch, the lower boundary is located above the iliac spine, percussion real sound. Test: a small amount of urine red blood cells, X-ray