Medial fossa

The medial fossae are concave depressions of peritoneum in the paravesical space bounded by the medial umbilical folds and the lateral umbilical folds. The fossae are contained within the inguinal (Hesselbach’s) triangle. The right medial fossa typically partially contains the cecum and/or ileum and the left medial fossa partially contains the sigmoid colon. These abdominal structures can be displaced by ascites.

The medial fossa is the origin of most direct inguinal hernias.

Share article

Article information

rID: 44424
Section: Anatomy
Synonyms or Alternate Spellings:
  • medial fossae

Support Radiopaedia and see fewer ads

Updating… Please wait.
Loadinganimation

Alert accept

Error Unable to process the form. Check for errors and try again.

Alert accept Thank you for updating your details.