Chronic Kidney Disease USMLE Step 1 Practice Question
A 3-year-old girl presents with a painless left flank mass discovered by her mother during bathing. Vital signs show BP 110/68 mmHg, HR 98/min, RR 22/min, temperature 37.2°C, and SpO2 98% on room air. She denies fever, weight loss, and hematuria. Laboratory studies reveal hemoglobin 10.2 g/dL. Abdominal ultrasound demonstrates a large unilateral left renal mass with normal renal function. Which diagnosis is most likely?
Answer choices
- AWilms tumorCorrect answer
- BTransitional cell carcinoma
- CRenal cell carcinoma
- DOncocytoma
- EAngiomyolipoma
- FNeuroblastoma
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