The intestinal mesentery undergoes a torsion in early fetal life, during which the right colon, that is, the cecum, ascending colon and nearly half of the transverse colon travel from left to right across the duodenum and toward the right kidney. According to most of our textbooks, the normal location for the hepatic flexure is in front of the right kidney and near the right border of the liver. It is a fact, however, revealed by fluoroscopic examinations and by surgical inspections, that the hepatic flexure in many persons has failed to rotate sufficiently far to the right to become fixed by the phrenocolic ligament in the classic situation just mentioned.
For the purpose of determining the position of the hepatic flexure in healthy persons, a series of fluoroscopic examinations with barium meal were carried out by my associate, Dr. V. J. LaRose, on twenty-five undergraduate nurses, all with normal
QUAIN EP. PATHOGENIC PTOSIS OF THE RIGHT COLON. Arch Surg. 1923;6(2):638-652. doi:10.1001/archsurg.1923.01110180215008