Radiology Abdominal ultra-sonography in a 3 year old boy show a solid circumscribed hypoechnoic renal mass. Most likely diagnosis is – A Wilm's tumor B Renal cell carcinoma C Mesoblastic nephroma D Oncocytoma 💡 Explanation Abdominal ultra-sonography in a 3 year old boy show a solid circumscribed hypoechnoic renal mass. Most likely diagnosis is - ✓ Correct Answer: A. Wilm's tumor