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August 1996

Surgical Anatomy

Arch Surg. 1996;131(8):833. doi:10.1001/archsurg.1996.01430200043007

The triangular ligaments are the sharp, bloodless, peritoneal folds at the extreme right and left limits of the attachment of the liver to the diaphragm. They lie at the (diagonally) opposite ends of the posterior surface of the liver. The left triangular ligament is an extensive fold which can be clamped between the right index and middle fingers much as can the "pedicle" of the spleen. (Actually, it is attached far back on the upper surface of the left lobe.) The right triangular ligament is less well marked. It is attached to the right inferior end of the posterior surface of the right lobe. Its two layers at once diverge and, as the upper and lower layers of the coronary ligament, limit the bare area on the back of the liver above and below. The upper layer of the coronary ligament is reflected from the right lobe of the liver

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