paraduodenal fold

par·a·du·o·de·nal fold

[TA]
a sickle-shaped fold of peritoneum, sometimes found arching between the left side of the duodenojejunal flexure and the medial border of the left kidney; its right free edge contains the ascending branch of the left colic artery and inferior mesenteric vein; forms anterior boundary of the paraduodenal recess.
See also: paraduodenal recess.

Treitz,

Wenzel, Bohemian pathologist, 1819-1872.
Treitz arch - a sickle-shaped fold of peritoneum that forms the anterior boundary of the paraduodenal recess. Synonym(s): paraduodenal fold
Treitz fascia - fascia behind the head of the pancreas.
Treitz fossa - an inconstant depression in the peritoneum extending posterior to the cecum. Synonym(s): subcecal fossa
Treitz hernia - hernia in the subperitoneal tissues. Synonym(s): duodenojejunal hernia
Treitz ligament - Synonym(s): suspensory muscle of duodenum
Treitz muscle - Synonym(s): suspensory muscle of duodenum