19 October 2020
: Case report 
Acquired Cystic Disease-Associated Renal Cell Carcinoma Extending to the Renal Pelvis Mimicking Urothelial Carcinoma on Computed Tomography (CT): Two Case Reports
Mistake in diagnosis
Hiromi Edo1ABCDEF*, Yohsuke Suyama1ADEF, Hiroaki Sugiura1AEF, Kenichiro Ojima2EF, Keiichi Ito2ABEF, Kosuke Miyai3BDEF, Susumu Matsukuma3CDEF, Hiroshi Shinmoto1ABCDEFDOI: 10.12659/AJCR.926630
Am J Case Rep 2020; 21:e926630
Figure 4. Findings from histopathological analysis of an acquired cystic disease-associated renal cell carcinoma in the 66-year-old man in Case Report 1. (A) The gross image shows a yellow solid tumor with bleeding that fills the left renal pelvis. (B) The tumor exhibits a wide spectrum of histological characteristics, including microcystic, papillary, tubular, and cribriform architecture. (C) Histologically, the tumor has eosinophilic and prominent nucleoli. The arrowhead indicates calcium oxalate crystal deposition.