Acquired Cystic Disease-Associated Renal Cell Carcinoma Extending to the Renal Pelvis Mimicking Urothelial Carcinoma on Computed Tomography (CT): Two Case Reports

Hiromi Edo; Yohsuke Suyama; Hiroaki Sugiura; Kenichiro Ojima; Keiichi Ito; Kosuke Miyai; Susumu Matsukuma; Hiroshi Shinmoto

doi:10.12659/AJCR.926630

19 October 2020 : Case report Japan

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 Edo^1ABCDEF*, Yohsuke Suyama^1ADEF, Hiroaki Sugiura^1AEF, Kenichiro Ojima^2EF, Keiichi Ito^2ABEF, Kosuke Miyai^3BDEF, Susumu Matsukuma^3CDEF, Hiroshi Shinmoto^1ABCDEF

DOI: 10.12659/AJCR.926630

Am J Case Rep 2020; 21:e926630

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Figure 1. Computed tomography (CT) images of an acquired cystic disease-associated renal cell carcinoma in the 66-year-old man in Case Report 1. The left renal parenchyma is markedly thin and the dilated pelvis and calyx are filled with masses (*) without obvious enhancement in either phase (A–D). For the region of interest of a part of the lesion, the CT value of each phase was measured. (A) Plane phase (30 Hounsfield units [HUs]). (B) Corticomedullary phase (41 HUs). (C) Nephrographic phase (55 HUs). (D) Early excretory phase (42 HUs). There was no obvious calcification in the mass.

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Acquired Cystic Disease-Associated Renal Cell Carcinoma Extending to the Renal Pelvis Mimicking Urothelial Carcinoma on Computed Tomography (CT): Two Case Reports

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