Medullary Nephrocalcinosis on Renal POCUS Female with right flank pain. Diagnosis and cause? Answer: Medullary Nephrocalcinosis with right flank pain due to distal ureteral stone seen with POCUS along with hydronephrosis. Labeled Schematic: https://twitter.com/RJonesSonoEM/st - Dr. Robert Jones @RJonesSonoEM #Medullary #Nephrocalcinosis #Renal #POCUS #clinical #ultrasound