What's the most likely diagnosis? 
              
                - 51 year-old female post cholecystectomy
                  
                 
              
              
              
              
              
                - Urinary retention
 
                - Abscess
 
                - Small bowel obstruction
 
                - Ventral hernia
 
                - Alien infestation
 
              
              Additional Image - Axial CT scan of the abdomen
              
             
            
               
              Additional Images
                
              
              
              Axial CT scan of the abdomen
              
             
            
              
                Answer:
              
                 
                  4. Ventral hernia
                  
                
              
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              Ventral Hernia
              General Considerations
              
              
                - By definition:  protrusion of abdominal structures through the abdominal wall containing (1) an  opening in the abdominal wall, and (2) a hernia sac consisting of  abdominal contents enclosed by peritoneum
 
                - Majority of  abdominal hernias in adults that are acquired are iatrogenic (surgery)
 
                - Inguinal hernias  are most common, mostly indirect type
 
                - High male to  female ratio for inguinal hernias
 
              
               
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