Fig. 1A–B.

(A) The lateral femoral cutaneous nerve is pushed up and kinked by the sharp ridge of the iliac fascia (black arrow) and ensheathed in the tendinous origin of the sartorius muscle (white arrow). Two neuroma formations (pseudoneuromas) were observed just proximal to the constriction sites (white arrowhead). ASIS = anterior superior iliac spine; SA = sartorius muscle; IF = iliac fascia. (B) After neurolysis of the lateral femoral cutaneous nerve (LFCN) and partial dissection of the sartorius fascia and inguinal ligament, the LFCN can be seen clearly.