The Cause of Cervical Lymph Node Recurrence after the Initial Surgery of Papillary Thyroid Carcinoma
	    		
		   		
		   			
		   		
	    	
    	 
    	10.21593/kjhno/2019.35.2.11
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Hyeung Kyoo KIM
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Eun Ju HA
			        		
			        		;
		        		
		        		
		        		
			        		Inhwa LEE
			        		
			        		;
		        		
		        		
		        		
			        		Jeonghun LEE
			        		
			        		;
		        		
		        		
		        		
			        		Euy Young SOH
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Department of Surgery, Ajou University School of Medicine, Suwon, Korea. sohey@aumc.ac.kr
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Original Article
 
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Thyroid cancer papillary;
			        		
			        		
			        		
				        		Recurrence;
			        		
			        		
			        		
				        		Reoperation
			        		
			        		
	        			
        			
        		
 
        	
            
            	- MeSH:
            	
	        			
	        				
	        				
				        		
					        		Cohort Studies;
				        		
			        		
				        		
					        		Diagnosis;
				        		
			        		
				        		
					        		Follow-Up Studies;
				        		
			        		
				        		
					        		Humans;
				        		
			        		
				        		
					        		Lymph Nodes;
				        		
			        		
				        		
					        		Medical Records;
				        		
			        		
				        		
					        		Neck;
				        		
			        		
				        		
					        		Prognosis;
				        		
			        		
				        		
					        		Recurrence;
				        		
			        		
				        		
					        		Reoperation;
				        		
			        		
				        		
					        		Retrospective Studies;
				        		
			        		
				        		
					        		Thyroid Gland;
				        		
			        		
				        		
					        		Thyroid Neoplasms;
				        		
			        		
				        		
					        		Tomography, X-Ray Computed
				        		
			        		
	        			
	        			
            	
            	
 
            
            
            	- From:
	            		
	            			Korean Journal of Head and Neck Oncology
	            		
	            		 2019;35(2):11-17
	            	
            	
 
            
            
            	- CountryRepublic of Korea
 
            
            
            	- Language:Korean
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	BACKGROUND/OBJECTIVES: Papillary thyroid carcinoma (PTC) has generally an indolent character with a good prognosis. However, recurrence remains a major concern for the patients during their lifetime. Despite the slowly progressing character of PTC, recurrence can occur within a short period after initial surgery.This study aimed to determine the clinical findings and cause of recurrence in patients who underwent re-operative surgery due to neck node recurrence by reviewing the CT (computed tomographic) scan imaging of the recurrence of PTC retrospectively.MATERIALS #SPCHAR_X0026; METHODS: We reviewed the medical records of patients referred to Ajou University Hospital from January 2002 to January 2018. All patients had re-operative surgery due to neck node recurrence and CT scan results of preoperative evaluation and postoperative follow up. Over this period, 110 patients who underwent re-operation due to neck node recurrence with a CT scan were included in our cohort, resulting in a total of 220 re-operations.RESULTS: The time from initial operation to first re-operation was examined in 110 patients. The median time to re-operation was 28 months, with a range of 4 months to 186 months. Most re-operations (82.7%) occurred within the first five years, 43.6% were in the first two years from the initial surgery. The result of the retrospective CT review showed newly developed cases (21,19.1%), missed diagnosis cases (42,38.2%), real recur cases after surgery (33,30.0%), and remnant lymph nodes (LNs) cases (14,12.7%). We further sub-analyzed 14 cases with remnant LNs. Reasons for remnant LNs included insufficient operation (N=5) and beyond general surgical extent. (N=9).CONCLUSION: Re-operation due to cervical lymph node recurrence is mostly a persistent disease. They included a missed diagnosis and incomplete operation. These finding may reduce the reoperation of cervical lymph node recurrence by accurate preoperative evaluation and complete surgical resection at the initial surgery.