A Case of IgG4-Related Pseudotumor in Larynx
	    		
		   		
		   			
		   		
	    	
    	 
    	10.22469/jkslp.2022.33.2.110
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Min Hyuk LEE
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Joon Pyo HONG
			        		
			        		;
		        		
		        		
		        		
			        		Tae Hwan KIM
			        		
			        		;
		        		
		        		
		        		
			        		Sung Min JIN
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Department of Otorhinolaryngology-Head and Neck Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Case Report
 
        	
        	
            
            
            	- From:Journal of the Korean Society of Laryngology Phoniatrics and Logopedics
	            		
	            		 2022;33(2):110-114
	            	
            	
 
            
            
            	- CountryRepublic of Korea
 
            
            
            	- Language:Korean
 
            
            
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		        	Abstract:
			       	
			       		
				        
				        	 IgG4-related disease is a fibroinflammatory condition by infiltration of IgG4-positive plasma cells that often presents as a tumorous lesion. This disease can affect nearly every organ system. After the pancreas, the head and neck region is second most common site for presentation of IgG4- related disease such as Mikulicz’s disease, Küttner tumor. The involvement of IgG4-related disease in laryngeal lesions is extremely rare. We have experienced a case of IgG4-related disease with pseudotumor formation in the larynx that is suggestive of malignancy in radiologic findings. But the pathology findings was finally confirmed as IgG4-related disease. Oral treatment with prednisolone was initiated, and the edematous mass reduced in size without permanent functional impairment of vocal fold mobility. We report our experience with a literature review.