question: i m 41 years of age and last september 2012 i had 3.8 mm kidney stone in my right kidney(interpolar) and 4.4 mm interpolar and 5.7 mm inferior at left kidney as of march 18, 2014 my ulrasound result was there is still a hyperechoic focus seen in the right inferior pole calyx measuring 3.5 mm.. size of my right kidney 9.4x6 3x3.5cms. CT 1.3 cm left kidney measures 9.4x4 5x3.6 cms CT 1.2 cm