Which of the following is the most common malignant tumor of infancy?: (A) Neuroblastoma, (B) Wilm's tumor, (C) Polycystic kidney disease, (D) Renal cell carcinoma
Answer is A. a. Neuroblastoma(Ref: Nelson's 20/e p 2417, Ghai 8/e 616)Both Neuroblastoma & Wilms' tumor can present as a solid abdominal mass with calcifications.As the child in the given question is an infant, Neuroblastoma is the best answer.