Ilioinguinal Neuralgia

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Anatomy

Main article: Ilioinguinal Nerve

The ilioinguinal nerve originates from the L1 nerve root along with the iliohypogastric nerve. It is a mixed nerve providing motor supply to the Internal Oblique and Transversus Abdominis muscles, and sensory supply to the anterior one third of the scrotum/labia and root of the penis/clitoris, as well as to the superior medial thigh.

Aetiology

• Post-surgical
  • Inguinal hernia repair
  • Traumatic trochar from laparoscopic surgery
  • Appendectomy and hysterectomy
  • Abdominoplasty
  • Orchiectomy
• Other Trauma
  • Blunt abdominal trauma
  • Femoral catheterization
  • Lower external oblique aponeurosis disruption (hockey players)
• Pregnancy
• Idiopathic, entrapment at:
  • Paravertebral area
  • Iliac crest
  • Rectus border muscle
  • Inguinal region

Differential Diagnosis

Differential Diagnosis

• Lumbar Radicular Pain and Radiculopathy
• Genitofemoral Nerve Entrapment
• Iliohypogastric Nerve Entrapment
• Lumbar Plexopathy
• Inguinal hernia
• Hydrocele
• Varicocele

References

• Elsakka KM, M Das J, Allam AE. Ilioinguinal Neuralgia. [Updated 2021 Nov 21]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK538256/