Dynamic Contrast-Enhanced CT Characterization of Xp11.2 Translocation/TFE3 Gene Fusions versus Papillary Renal Cell Carcinomas

Figure 2

Type 1 papillary renal cell carcinoma in a 39-year-old asymptomatic man. (a) Abdominal plain CT scan shows a round well-defined isodense (40 HU) nodule of 2.5 cm in size in the cortex of right kidney. (b) The tumor is enhanced slightly and homogeneously (to around 58 HU) during corticomedullary phase without necrotic or cystic areas in the lesion. (c) The tumor continues to be enhanced homogeneously (to around 78 HU) during the nephrographic phase.

(a)

(b)

(c)