medial umbilical fold

me·di·al um·bil·i·cal fold

[TA]
a fold of peritoneum on the lower part of the anterior abdominal wall that covers the obliterated umbilical artery on either side of the urachus.
References in periodicals archive ?
2) The lateral umbilical folds are lateral to the medial umbilical fold and are the peritoneal covering of the deep inferior epigastric vessels.