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Weigert-Meyer rule

applies to duplex collecting systems

  • 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

Charles E. Kahn, Jr., MD  -  2 February 1995
Last updated:  1 October 2013


 

Related CHORUS documents:
pancreas divisum
drooping lily sign
liver-spleen scan
Cantlie line
lacrimal gland enlargement
graft-vs.-host disease

 

Copyright © 2013, Charles E. Kahn, Jr.