Hi, Thanks for asking. Based on your query, my opinion is as follows. 1. Pelviectasis means dilatation of renal pelvis while caliectasis means dilatation of renal calyces. These calcyces are situated within the kidney. 2. Due to mild obstruction in ureter/bladder, the back pressure initially dilated the renal pelvis, if obstruction is still persistent the back pressure will further impact inside the kidney dilating the renal pelvis. 3. At present, Right and left kidney are showing mild renal pelvis dilatation. Both the kidneys do not any significant internal renal calyx dilatation. 4. Nothing to worry at present. Continue you with control of diabetes. Hope it helps. Any further queries, happy to help again.