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J Korean Assoc EMG Electrodiagn Med 2014;16(2):89-94.
Published online December 31, 2014.
A Case of Preganglionic Brachial Plexus Injury with Asymptomatic Giant Traumatic Pseudomeningocele Contained within Spinal Canal
Received: 3 September 2014   • Revised: 8 October 2014   • Accepted: 29 October 2014
It is well known that a traction injury of the brachial plexus may produce tears in the root sleeves resulting in pseudomeningocele, which are in most instances small in size. Giant pseudomeningocele, larger than 8cm in length, is very uncommon, and have been described rarely in symptomatic cases. Seventeen years old male complained of left upper limb weakness after motorcycle accident in our case. An electrodiagnostic study showed panplexopathy, preganglionic lesion on C5-C7 root level and postganglionic lesion on C8-T1 root level. Giant pseudomeningocle, which was 12.9 cm in length in the spinal canal along the cervical spine was shown on magnetic resonance image executed one month after accident. There were no symptoms due to intraspinal pseudomeningocele, except for symptoms due to brachial plexopathy. The authors report a first case of asymptomatic intra-spinal canal giant pseudomeningocele after brachial plexus injury.
Key Words: giant pseudomeningocele, preganglionic, brachial plexus injury
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