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  • Lift the omentum to obtain good visualization of the blood vessels. 
  • The blood vessels are divided and ligated immediately distal to the colon. 
  • The middle layer of thin tissue consisting of two peritoneal sheets with loose connective tissue in between is divided with diathermy.
  • The omentum may be adherent to the spleen and pulling may cause the spleen to rupture and bleed.
  • In cases where the tumor tissue is close to the colon, the tissue will often open when carefully splitting the peritoneum with diathermy.  
  • All blood vessels are ligated.

At Oslo University Hospital, the tissue specimens are sent dry to the pathology lab for processing and fixing.

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