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KMID : 0948920190180010052
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Clinical Pain
2019 Volume.18 No. 1 p.52 ~ p.57
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Spinal Accessory Neuropathy Secondary to Diffuse Large B-Cell Lymphoma
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Kim Kun-Woo
Lee Yong-Taek
Yoon Kyung-Jae
Lee Jung-Sang
Hwang Jin-Tae
Do Jong-Geol
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Abstract
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Spinal accessory neuropathy (SAN) is commonly caused by an iatrogenic procedure, and that caused by tumors is very rare. We present a case of a 49-year-old man suffering from weakness in the right trapezius and sternocleidomastoid muscle. An electrophysiology study confirmed proximal SAN. Fluorodeoxyglucose (FDG)?positron emission tomography (PET)/computed tomography (CT) revealed a diffuse large B-cell lymphoma compressing the right spinal accessory nerve. Ultrasonography showed definite atrophy on the trapezius and sternocleidomastoid muscles. In addition, post-chemotherapy FDG-PET/CT showed increased FDG uptake in the right upper trapezius, suggestive of denervation. This is the first report of SAN caused by direct compression by a diffuse large B-cell lymphoma, comprehensively assessed by an electrophysiology study, ultra-sonography, and FDG-PET/CT.
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KEYWORD
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Spinal accessory nerve, Lymphoma, Scapula winging
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