A Case of Mucosa-Associated Lymphoid Tissue Lymphoma Occurring in the Bilateral Accessory Parotid and Parotid Glands Presenting as Infra-Zygomatic Masses
	    		
		   		
		   			
		   		
	    	
    	 
    	10.3342/kjorl-hns.2022.00549
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Seong Kyu MOON
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Hyeok Ro KWON
			        		
			        		;
		        		
		        		
		        		
			        		Eun Ju KIM
			        		
			        		;
		        		
		        		
		        		
			        		Seung Woo KIM
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Departments of Otorhinolaryngology-Head and Neck Surgery, Veterans Health Service Medical Center, Seoul, Korea
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Case Report
 
        	
        	
            
            
            	- From:Korean Journal of Otolaryngology - Head and Neck Surgery
	            		
	            		 2022;65(9):553-556
	            	
            	
 
            
            
            	- CountryRepublic of Korea
 
            
            
            	- Language:Korean
 
            
            
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		        	Abstract:
			       	
			       		
				        
				        	 Neoplasm from the accessory parotid glands (APG) rarely occurs, and its malignancy rate is higher than other salivary glands. The B-cell lymphoma from APG is rare, with less than 2% of all malignancy in APG. The mucosa-associated lymphoid tissue (MALT) lymphoma, a subtype of B-cell lymphoma, tends to be a localized disease with an indolent clinical course. It is very rare for MALT lymphoma to develop bilaterally in the APG and the parotid glands without an autoimmune disease. A 43-year-old male presented with superficial masses in the bilateral infra-zygomatic regions, and was pathologically confirmed as MALT lymphoma by excisional biopsy. We report this very rare and interesting case with a brief literature review.