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Enlarged heterogeneous prostate gland (BPH) measures 5.3 x 5.2 x 5.3 cm with an average volume of 75 ml. Incidental finding of a well-defined, isoechoic, rounded mass lesion measuring approximately 3.6 x 4.0 cm at the lower pole of left kidney. Some internal vascularity is appreciable in it on color Doppler ultrasound examination.