An unusual cause of meralgia paresthetica

Introduction: Meralgia paresthetica (MP) is a kind of mononeuropathy of the lateral femoral cutaneous nerve (LFCN). It may be misdiagnosed frequently because of its low prevalence. The purpose of this report is to emphasize that meralgia paresthetica may occur after femoral catheterization. Case report: A 44-year-old, non-obese woman with anterolateral left thigh pain and dysesthesia was admitted to our hospital. Her sysmptoms were first felt following a cardiac catheterization via the left femoral artery. She had no histroy of operations or pelvic diseases. Bilateral stretch reflexes were normal and no weakness in the muscles of the involved extremity was determined. No pathological findings in the lower back and pelvic region were found by radiological investigations, including magnetic resonance imaging. During the ENMG analysis sensory responses were not recorded in the distribution area of LFCN. The other nerves were normally responsive to the stimulations. These ENMG findings confirmed the diagnosis of MP. The sysmptoms were relieved by conservative medical therapy and LFCN blockage.