Spinal Accessory Neuropathy Secondary to Diffuse Large B-Cell Lymphoma
	    		
		   		
	    	
    	
    	
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Kunwoo KIM
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Yong Taek LEE
			        		
			        		;
		        		
		        		
		        		
			        		Kyung Jae YOON
			        		
			        		;
		        		
		        		
		        		
			        		Jung Sang LEE
			        		
			        		;
		        		
		        		
		        		
			        		Jin Tae HWANG
			        		
			        		;
		        		
		        		
		        		
			        		Jong Geol DO
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Department of Physical and Rehabilitation Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea. jg.do@samsung.com
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Case Report
 
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Spinal accessory nerve;
			        		
			        		
			        		
				        		Lymphoma;
			        		
			        		
			        		
				        		Scapula winging
			        		
			        		
	        			
        			
        		
 
        	
            
            	- MeSH:
            	
	        			
	        				
	        				
				        		
					        		Accessory Nerve;
				        		
			        		
				        		
					        		Atrophy;
				        		
			        		
				        		
					        		B-Lymphocytes;
				        		
			        		
				        		
					        		Denervation;
				        		
			        		
				        		
					        		Electrophysiology;
				        		
			        		
				        		
					        		Humans;
				        		
			        		
				        		
					        		Lymphoma;
				        		
			        		
				        		
					        		Lymphoma, B-Cell;
				        		
			        		
				        		
					        		Middle Aged;
				        		
			        		
				        		
					        		Muscles;
				        		
			        		
				        		
					        		Superficial Back Muscles;
				        		
			        		
				        		
					        		Ultrasonography
				        		
			        		
	        			
	        			
            	
            	
 
            
            
            	- From:
	            		
	            			Clinical Pain
	            		
	            		 2019;18(1):52-57
	            	
            	
 
            
            
            	- CountryRepublic of Korea
 
            
            
            	- Language:Korean
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	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, ultrasonography, and FDG-PET/CT.