[1] The lateral arcuate ligament is commonly described in anatomy textbooks as attaching at the first lumbar vertebra (L1).
[2] However, other instances have been found in cadaver studies with attachments at either the second (L2) or third (L3) lumbar vertebra.
[2] In around 5% of people, inferolateral extensions of the lateral arcuate ligaments, such as thickened nodular areas, are found adjacent to the lateral diaphragmatic surface which can be visualized with computed tomography (CT) scans.
[4][5] This was found in his animal dissections performed as part of his Rome lectures, collected in De Anatomicus Administrationibus.
[4][5] This article incorporates text in the public domain from page 405 of the 20th edition of Gray's Anatomy (1918)