Weigert-Meyer rule

• upper-pole ureter
  • obstruction ==> hydronephrosis
  • inserts more inferiorly and medially in bladder
  • may insert into urethra, vagina, etc.
    • males not incontinent: insertion above ext. sphincter
  • associated with ureterocele

• lower-pole ureter
  • reflux ==> pyelonephritis

see also: "drooping lily" sign

© 2002, C.E. Kahn, Jr.
2002-04-18