• Benjamin Damarey, Xavier Demondion, Nathalie Boutry, Hee-Jin Kim, Guillaume Wavreille, and Anne Cotten.
• Department of Muskuloskeletal Radiology, Hôpital R. Salengro, Rue du Professeur Emile Laine, Lille Cedex, France.
• J Clin Ultrasound. 2009 Feb 1;37(2):89-95.

PurposeTo evaluate the ability of high-frequency sonography to evaluate the lateral femoral cutaneous nerve (LFCN).MethodsA cadaveric study was performed on 5 cadavers to outline the normal course of the LFCN. Next, 37 LFCNs in 21 volunteers were evaluated via sonography with a 5-13-MHz linear-array transducer.ResultsThe LFCN was easily identified in our dissections. It always entered the thigh under the inguinal ligament and coursed superficially to the sartorius muscle. In 2/10 (20%) cases, anatomical variants were observed. Sonography revealed the LFCN in 26/37 (70%) cases. The relationships of the nerve with the deep circumflex iliac artery, the anterior superior iliac spine, and the sartorius were visualized. Neuromas were observed bilaterally in 1 volunteer.ConclusionThe LFCN can be seen in the groin with the aid of sonography.(c) 2008 Wiley Periodicals, Inc.

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