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KMID : 0860920100120020147
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Journal of the Korean Association EMG-Electrodiagnostic Medicine
2010 Volume.12 No. 2 p.147 ~ p.150
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A Case of Post-herpetic Pseudohernia - Electrophysiologic and Radiologic Findings
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Kim Bong-Jae
Suh Bum-Chun
Kim Yong-Bum
Chung Pil-Wook
Moon Heui-Soo
Yoon Won-Tae
Jin Dong-Kwan
Park Yong-Shik
Yoon Byung-Suk
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Abstract
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Background: Segmental zoster paresis occurs only 1-5 percent patient with herpes zoster. Although, thoracic area is the most frequent region of zoster, zoster paresis involving thoracic myotome is relativelyrare. Furthermore, it is difficult to assess the clinical and electrophysiological findings.
Case: A 76-year-old man visited neurology department due to right abdominal lancinating post-herpetic pain. We could see the old skin lesion of zoster and right lower abdominal protrusion on examination and abdominal CT revealed mild right abdominal wall distension without visible other intraabdominal pathology. Nerve conduction study of intercostal nerve demonstrated low compound motor action potentials (CMAPs) on right T10, T11 compared with left one, and needle electromyography showed mild denervation potentials in right rectus abdominis (T10-T11 myotome) and T10 paraspinal muscle.
Conclusion: Abdominal pseudohernia could be presented in patient with zoster in lower thoracic level and electrophysiologic study help to define pathologic status of post-herpetic pseudohernia.
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KEYWORD
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Herpes zoster, Pseudohernia, Zoster paresis
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