Investig Magn Reson Imaging.  2016 Sep;20(3):175-180. 10.13104/imri.2016.20.3.175.

Motor and Sensory Peripheral Neuropathy in a Patient Came after Acute Carbon Monoxide Intoxication: a Case Report with Magnetic Resonance Image

• Lee S
• Kim SY
• Lee JY
• Choi MJ

• KMID: 2354798
• DOI: http://doi.org/10.13104/imri.2016.20.3.175

Abstract

Carbon monoxide (CO) intoxication is a leading cause of the variable neuropsychiatric impairment. Despite of widely known central nerve system complications after CO intoxication, peripheral neuropathy due to CO poisoning is rare and has been under-recognized. We report interesting case of a 29-year-old male who suffered from motor weakness and sensory abnormalities in his lower extremity following acute CO intoxication. The patient revealed direct and indirect signs of peripheral neuropathy of the left inferior gluteal and sciatic nerve on magnetic resonance imaging.

Keyword

Peripheral neuropathy; CO intoxication; Sciatic neuropathy; Magnetic resonance imaging

MeSH Terms

Adult
Carbon Monoxide*
Carbon*
Humans
Lower Extremity
Magnetic Resonance Imaging
Male
Peripheral Nervous System Diseases*
Poisoning
Sciatic Nerve
Sciatic Neuropathy
Carbon
Carbon Monoxide

Figure

• 

  Fig. 1 On fluid-attenuated inversion recovery (FLAIR) images of follow-up brain MRI 4 weeks after CO intoxication (a, b), ill-defined high signal intensity lesions are seen along the both periventricular white matters, centrum semiovale (white arrows) and splenium of corpus callosum (arrowhead). On Diffusion-weighted image, focal high signal intensity is seen in the splenium of corpus callosum with corresponding low ADC map (arrowheads) (c, d), representing a b diffusion restriction.

• 

  Fig. 2 On lower extremity MRI, axial fat-suppressed T2-weighted image (a) and T1-weighted image (b) show swollen left sciatic nerve with T2 hyperintensity (arrow). On fat-suppressed T2-weighted image (a), ill-defined high signal intensity lesions (arrowheads) are seen in left gluteus maximus and right obturator internus muscles, representing denervation edema. Two coronal fat-suppressed T2-weighted images (c, d) also reveal signal changes with swelling of left sciatic nerve at the levels of buttock and thigh (arrows).

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