Contributors: John Hedgepeth and Sara E. Wobker
A man in his 40s with end stage renal disease, status post living donor kidney transplant for IgA nephropathy in his 20s, underwent a radical nephrectomy for an incidentally discovered, contrast-enhancing, solid, interpolar mass of his native left kidney.
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1. What is the correct diagnosis?
A. Collecting duct carcinoma
B. Tubulocystic renal cell carcinoma
C. Papillary renal cell carcinoma, tubulocystic variant
D. Acquired cystic disease-associated renal cell carcinoma
E. Multilocular cystic renal neoplasm of low malignant potential