Clinical and Radiologic Characteristics of Caudal Regression Syndrome in a 3-Year-Old Boy: Lessons from Overlooked Plain Radiographs
	    		
		   		
		   			
		   		
	    	
    	 
    	10.5223/pghn.2021.24.2.238
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Seongyeon KANG
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Heewon PARK
			        		
			        		;
		        		
		        		
		        		
			        		Jeana HONG
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Department of Pediatrics, Kangwon National University Hospital, Chuncheon, Korea
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Letter to the Editor
 
        	
        	
            
            
            	- From:Pediatric Gastroenterology, Hepatology & Nutrition
	            		
	            		 2021;24(2):238-243
	            	
            	
 
            
            
            	- CountryRepublic of Korea
 
            
            
            	- Language:English
 
            
            
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		        	Abstract:
			       	
			       		
				        
				        	Caudal regression syndrome (CRS) is a rare neural tube defect that affects the terminal spinal segment, manifesting as neurological deficits and structural anomalies in the lower body. We report a case of a 31-month-old boy presenting with constipation who had long been considered to have functional constipation but was finally confirmed to have CRS. Small, flat buttocks with bilateral buttock dimples and a short intergluteal cleft were identified on close examination. Plain radiographs of the abdomen, retrospectively reviewed, revealed the absence of the distal sacrum and the coccyx. During the 5-year follow-up period, we could find his long-term clinical course showing bowel and bladder dysfunction without progressive neurologic deficits. We present this case to highlight the fact that a precise physical examination, along with a close evaluation of plain radiographs encompassing the sacrum, is necessary with a strong suspicion of spinal dysraphism when confronting a child with chronic constipation despite the absence of neurologic deficits or gross structural anomalies.