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Article type: Case Report
Authors: Giray, Esraa; * | Albayrak, Osmanb | Kenis-Coskun, Ozgeb | Yagci, Ilkerb | Gündüz, Osman Hakanb
Affiliations: [a] Department of Physical Medicine and Rehabilitation, University of Health Sciences, Fatih Sultan Mehmet Research and Training Hospital, Istanbul, Turkey | [b] Department of Physical Medicine and Rehabilitation, Marmara University School of Medicine, Istanbul, Turkey
Correspondence: [*] Corresponding author: Esra Giray, Department of Physical Medicine and Rehabilitation, University of Health Sciences, Fatih Sultan Mehmet Research and Training Hospital, E5 Karayolu Üzeri İçerenöy-Ataşehir 3475, Istanbul, Turkey. E-mail: [email protected].
Note: [1] This case report has been submitted as a poster presentation for the 28th National Online Congress of Physical Medicine and Rehabilitation held on 8–11 April 2021.
Abstract: BACKGROUND: When a patient with a prior history of malignancy and radiotherapy develops progressive weakness as a presentation of plexus involvement, the differential diagnosis usually rests between radiation-induced plexopathy and invasion from recurrent tumor. The presence of myokymic discharges is helpful in differentiating radiation-induced from neoplastic plexopathy. OBJECTIVE: To present a case report of a patient with chordoma, a locally aggressive tumor, who was diagnosed with recurrent tumor accompanied by the occurrence of myokymia in needle electromyographic examination. METHOD: A 55-year-old male patient with a history of chordoma and radiotherapy presented to our outpatient clinic with complaints of foot drop, and impaired walking for two months. His latest magnetic resonance imaging (MRI) which was performed three months earlier did not show recurrence. Upon electromyographic evaluation, myokymia, the pathognomic electromyography abnormal wave for radiation plexopathy was detected supporting a diagnosis of radiation plexitis rather than recurrent neoplastic invasion. One month later he presented with more severe pain and was re-evaluated by an MRI, on which a mass was detected indicating relapse. CONCLUSION: With this case report, we would like to emphasize that the behaviour of the tumor should be considered and imaging should be repeated when tumors display aggressive or recurrent behaviour.
Keywords: Case report, chordoma, electromyography, lumbosacral plexopathy, myokymia, radiation
DOI: 10.3233/BMR-210324
Journal: Journal of Back and Musculoskeletal Rehabilitation, vol. 36, no. 1, pp. 155-161, 2023
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