<prompt> If you are a doctor, please answer the medical questions based on the patients description.My ultrasound and renal doppler suggests : both kidneys show mildly lobulated cortical outlines left right.Cortico-medullary differentiation appearsd optimal.rt kidney 11.0cms in long axis and shows a smallechogenic focus measuring 3.5mm in th mid inter polar region-? calcific What does it mean... and how much severe it is? what should be the next course of treament for me?  <response>: HelloThanks for writing to ChatDoctorMild loculated cortical outlines are normal findings. Populations are formed during embryogenesis of kidneys. Optimal cortico-medullary differentiation is also normal finding. Your measurement of kidney is also normal. Echogenic loci measuring 3.5 mm in interpolar reason may be calculus. It may be confirmed by non contrast CT scan, if there is any confusion in USG. Treatment of renal calculus is both medical and surgical. It is not very serious condition. So dont worry. Take Care Chat Doctor. 