A 57-year-old man has hematuria and left-side flank pain. Diagnostic studies show a left-sides renal mass with extension into the renal vein. A radical nephrectomy is performed, and the specimen is sent for pathologic evaluation. Which of the following structures present in this patient's specimen is lined with epithelium derived from mesoderm of the ureteric bud?

A 57-year-old man has hematuria and left-side flank pain. Diagnostic studies show a left-sides renal mass with extension into the renal vein. A radical nephrectomy is performed, and the specimen is sent for pathologic evaluation. Which of the following structures present in this patient's specimen is lined with epithelium derived from mesoderm of the ureteric bud?



(A)Bowman capsule
(B)Distal convoluted tubule
(C)Loop of Henle
(D)Proximal convoluted tubule
(E)ureter

Answer: (E) ureter