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Lateral inguinal fossa

Lateral inguinal fossa

Posterior view of the anterior abdominal wall in its lower half. The peritoneum is in place, and the various cords are shining through. (Lateral inguinal fossa labeled at center right.)

Inguinal fossae
Latin	fossa inguinalis lateralis
Dorlands/Elsevier	f_14/12376123

The lateral inguinal fossa is a structure described in human anatomy. It is a shallow concave stretch of peritoneum on the deep surface of the anterior abdominal wall and is best seen from the greater peritoneal cavity, looking anteriorly (as, for example, during laparoscopy).

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Boundaries

It is bounded by the lateral umbilical fold (which contains the inferior epigastric artery), the medial umbilical fold (which contains the remnants of the fetal umbilical artery) and the inguinal ligament. Superiorly it is bounded by the lateral border of Rectus abdominis.

Clinical significance

It is a site of herniation for indirect inguinal hernia.

v • d • e Peritoneal ligaments, mesenteries, and folds
From ventral mesentery	Lesser omentum: Hepatoduodenal ligament - Hepatogastric ligament Liver: Coronary ligament (Left triangular ligament, Right triangular ligament, Hepatorenal ligament) - Falciform ligament (Round ligament of liver and Ligamentum venosum in it, but not of it)
From dorsal mesentery	Greater omentum: Gastrophrenic ligament - Gastrocolic ligament - Gastrosplenic ligament Mesentery: Transverse mesocolon - Sigmoid mesocolon - Mesoappendix - Root of the mesentery Splenorenal ligament - Phrenicocolic ligament
Uterus/ovaries	Broad ligament of the uterus (Mesovarium, Mesosalpinx, Mesometrium) - Ovarian ligament - Suspensory ligament of the ovary
Folds	Umbilical folds (Supravesical fossa, Medial inguinal fossa, Lateral inguinal fossa) - Ileocecal fold - Rectouterine folds
Recesses	Rectouterine pouch - Vesicouterine excavation - Rectovesical excavation - Pararectal fossa - Paravesical fossa
Peritoneal cavity	Greater sac - Lesser sac - Foramen of Winslow