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Meralgia paresthetica secondary to lipoma

Cheng-Shyuan Rau1, Ching-Hua Hsieh, Yueh-Wei Liu

  • 1Department of Neurosurgery, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung Hsien, Taiwan.

Journal of Neurosurgery. Spine
|January 2, 2010
PubMed

Insights

Meralgia paresthetica (MP), a condition causing lateral thigh pain, can be caused by lipoma compression. Surgical removal of the lipoma resolved the patient's symptoms, suggesting this as a potential treatment.

Area of Science:

  • Neurology
  • Dermatology
  • Surgical Pathology

Background:

  • Meralgia paresthetica (MP) is characterized by lateral thigh pain due to lateral femoral cutaneous nerve (LFCN) entrapment under the inguinal ligament.
  • Common causes include trauma, diabetes mellitus, and iatrogenic factors like bone graft harvesting or seat belt injury.

Observation:

  • A 50-year-old woman presented with a year-long history of right-sided MP.
  • Physical and radiological exams were normal, except for a lipoma on the sartorius muscle.
  • Conservative MP treatments and electrophysiological studies for peripheral neuropathy were ineffective.

Findings:

  • The patient underwent lipoma excision, which led to complete resolution of MP symptoms.
  • This case is the first documented instance of MP caused by lipoma compression.

Implications:

  • Lipoma compression should be considered as a potential cause of meralgia paresthetica.
  • Complete lipoma excision may effectively treat MP when caused by this specific etiology.

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