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A 28-year-old man with gross hematuria, frequent urination, painful urination and irregular blood clot. (A) Unenhanced CT scan of the bladder showed a polypoid soft-tissue mass with an exophytic growth pattern on the superior wall, with homogeneous density. (B and C) Contrast-enhanced CT scans revealed ring enhancement on the margin of lesion and symmetrical change in the center of the lesion. CT, computed tomography.
