Anatomic Variation in Patient with Lateral Femoral Cutaneous Nerve Entrapment Neuropathy.
BACKGROUND
We report a surgical case of entrapment neuropathy of lateral femoral cutaneous nerve (LFCN) with anatomical variation.


CASE DESCRIPTION
This 53-year-old man had a 10-year history of paresthesia and pain in the right anterolateral thigh exacerbated by prolonged standing and walking. His symptoms improved completely but transiently by LFCN block. The diagnosis was LFCN entrapment. Because additional treatment with drugs and repeat LFCN block was ineffective, we performed surgical decompression under local anesthesia. A nerve stimulator located the LFCN 4.5 cm medial to the anterior superior iliac spine. It formed a sharp curve and was embedded in connective tissue. Proximal dissection showed it to run parallel to the femoral nerve at the level of the inguinal ligament. The inguinal ligament was partially released to complete dissection/release. Postoperatively, his symptoms improved and the numeric rating scale fell from 8 to 1.


CONCLUSION
We report a rare anatomical variation in the course of the LFCN.
['Kokubo|Rinko|R|', 'Kim|Kyongsong|K|', 'Morimoto|Daijiro|D|', 'Isu|Toyohiko|T|', 'Iwamoto|Naotaka|N|', 'Kitamura|Takao|T|', 'Morita|Akio|A|']
D005267:Femoral Nerve D006801:Humans D008297:Male D008875:Middle Aged D009408:Nerve Compression Syndromes
Anatomic variation Lateral femoral cutaneous nerve Entrapment neuropathy Femoral nerve Meralgia paresthetica Surgery