Weigert-Meyer rule
Alternative eponyms
- Weigert-Meyer law
Related people
When duplicated ureters insert separately into the bladder, the laterocranial ostium corresponds to the caudal renal pelvis and the medio caudal ostium the cranial renal pelvis.
Description
Applies to duplex collecting systems, when complete, duplicated ureters insert separately into the bladder. The Weigert-Meyer rule states that. the upper pole ureter is the ectopic ureter and its orifice inserts inferomedially in the bladder in relationship to the lower pole normal ureter.
Or: When duplicated ureters insert separately into the bladder, the laterocranial ostium corresponds to the caudal renal pelvis and the medio caudal ostium the cranial renal pelvis.
Bibliography
- C. Weigert:
Über einige bildungsfehler der ureteren.
[Virchows] Archiv für pathologische Anatomie und Physiologie und für klinische Medizin, Berlin, 1877, 70: 490. - R. Meyer:
Zur anatomie und entwicklungsgeschichte der ureterverdoppelung.
Virchows Archiv für pathologische Anatomie und Physiologie und für klinische Medizin, Berlin, 1907, 87: 408.