Figure legends
Figure 1 . (a,b,c,d) Contrast-enhanced CT showed a well-defined 30×25 mm-sized mass in the lower pole of the right kidney in the early phase, with a weak contrast effect below the renal cortex in the equilibrium phase and washout in the drainage phase. (e,f) Bone scintigraphy and positron emission tomography-CT showed an accumulation in the left eighth rib, which was suspected of metastasis.
Figure 2. (a) The cells were eosinophilic, pale, and proliferating in a focal- and cord-like structure, similar to clear cell RCC (×400 magnification). (b) Diffuse positive findings of TFE3 staining (×400 magnification). (c) Split signal pattern of TFE3break-apart FISH.
Table 1. A review of patients with secondary renal cell carcinoma after treatment for nephroblastoma