Grades of VUR

• grade 1 : reflux limited to ureter
• grade 2 : reflux into renal pelvis
• grade 3 : mild dilatation of ureter and pelvicalyceal system. 
• grade 4 : 
  • tortuous ureter with moderate dilatation. 
  • blunting of fornicies but preserved papillary impressions. 
• grade 5 : 
  • tortuous ureter with severe dilatation of ureter and pelvicalyceal system. 
  • loss of fornicies and papillary impressions