Aberrant Origin of the Ilioinguinal Nerve from L1-L3: A Case Report

Vollständiger Abstract

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The Ilioinguinal Nerve (IIN) has a crucial role in providing sensory innervation to the groin region. The literature has extensively documented variability in IIN formation, particularly in relation to the iliohypogastric nerve. However, there is a scarcity of cadaveric studies that specifically document variations in the origin of the IIN. Herein, we report a case of an aberrant variation in the origin of the IIN. Instead of following the usual origin from the first lumbar (L1) nerve root, the right IIN was observed to arise from a broader contribution spanning the L1-L3 nerve roots, indicating an atypical, more extensive segmental origin. In contrast, the contralateral IIN followed the conventional anatomical pattern, originating solely from the L1 spinal nerve without additional contributions. Thorough knowledge of any variation concerning the IIN is crucial for surgeons, Orthopaedics, and anaesthetists, as it enables them to prevent iatrogenic injuries.