4 months old,wilms cancer【wilms cancer】

4 months old,wilms cancer【wilms cancer】
病情描述（发病时间、主要症状、就诊医院等）：
no any sympotoms.
Found in regular physical exam on Nov 18,2010.
in san antonio.
We are Chinese.But currently in hospital and can't input chinese.We can read Chinese on computer.
曾经治疗情况和效果：
Ultrasound,MRI,CT scan abdomen show:1.large right renal tumor with extensive nodularity and areas of necrosis and calcification.highest on the differential is nephroblastomatosis.unlikely differential includes mesoblastic nephroma and renal cell carcinoma.Teratoma is within the differential but is also less likely.Due to the inhomogeneity of the masses in the right kidney,I can't exclude some element of malignant degeneration 2.abnormal left inguinal lymph node.3.mild intrahepatic biliary ductal dilatation Surgery will be done in 9 hours
想得到怎样的帮助：
Your opinion about chemotherapy after surgery on infant.
Is it necessary to get chemo in all stages?
Email:
Thanks