Embryology USMLE Step 1 Practice Question
An intravenous pyelogram is performed on a patient to evaluate the function and structure of her kidneys. Examination of the resulting radiographs reveals that the left kidney is normal but that there is a duplication of the ureter and renal pelvis on the right side. Further testing reveals that kidney function is normal. This variation is a result of abnormal development of which of the following structures?
Answer choices
- AMesonephric tubules
- BMetanephric blastema
- CAllantoic duct
- DUreteric budCorrect answer
- EMesonephric duct
- FNephrogenic mesoderm
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