PMC6357702_01
Fluorodeoxyglucose positron emission tomography-computed tomography scan: Contrast-enhanced computed tomography images showed enhancing masses in the lower pole of the right kidney (a, f, i) and upper pole of the left kidney (c, h, i). Fused positron emission tomography-computed tomography images showed no uptake in the right renal mass (b, e, j) and peripheral intense fluorodeoxyglucose uptake in the necrotic left renal mass (d, g, j)
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F1
FDG PET/CT scan as per standard protocols. FDG PET/CT images revealed intense heterogeneous FDG uptake in the left renal mass while the uptake in the right renal mass was minimal (isointense with normal renal cortex) [Figure 1].
Microphotographs of histology of the right (a) and left (b) renal masses. High resolution images of same; right (c) and left (d). Lymphovascular invasion ([e] arrowheads) and necrosis ([f] arrow) in the left renal mass, respectively
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F2
Histopathological analysis revealed conventional clear cell carcinoma in both kidneys [Figure 2].