Accessory iliacus muscle with splitting of the femoral nerve: a case report

Introduction Variations in the iliopsoas muscle complex certainly have some clinical importance. Because these variations are usually associated with unusual femoral nerve formation, here we report a case of variation in the iliacus muscle combined with variation in the femoral nerve. Case report Variation in the iliacus muscle combined with variation in the femoral nerve was observed while performing a routine dissection of a 65-year-old male cadaver in the Department of Anatomy, SRM Medical College. The accessory iliacus muscle originated from iliac crest and inserted to the lesser trochanter of femur along with psoas major. This muscle variant was found to split the femoral nerve into medial and lateral slips. Conclusion The existence of this muscle variation along with nerve variation may increase the chances of nerve compression. Hence, detailed knowledge of these variations has immense importance in various pelvic and pelvifemoral surgeries.