All of the following nerves are posteriorly related to the kidney, EXCEPT:
Posterior to the kidney, between the quadratus lumborum muscle and the posterior surface of the kidney, are the subcostal nerve (T12) and vessels, the iliohypogastric and the ilioinguinal nerves (L1) passing inferolaterally. The lateral cutaneous nerve of the thigh is not posteriorly related to the kidney. Ref: Clinical Anatomy (A Problem Solving Approach), By Neeta V Kulkarni, 2nd Edition, Page 728, 729. ; Clinical Anatomy By Regions, By Richard S. Snell, 8th Edition, Page 262, 264, 265.
Subcostal Nerve
Iliohypogastric Nerve
Lateral Cutaneous Nerve of the thigh
Ilioinguinal Nerve