ABSTRACT
Objectives: Variations in branching of vessels have always been an area of keen interest in the field of anatomy.Variations of arteries are known and mentioned in literature too although studies on pattern of drainage of veinsare lacking. With this interest the following study was done with its importance in abdominal organ mobilizationresections surgeries.Materials and Methods: Present study was conducted with 24 formalin embalmed cadavers (20 Males and 4Females) procured from department of anatomy, Dr. D. Y. Patil Medical College, Dr. D. Y. Patil Vidyapeeth PimpriPune, India.Results: Inferior mesenteric vein drains venous blood from superior part of rectum, sigmoid colon and descendingcolon and generally terminate into splenic vein. However it may drain into superior mesenteric vein, at thejunction of superior mesenteric and splenic vein or portal vein.Conclusions: Knowledge of such variations of draining pattern of inferior mesenteric vein is an importantprerequisite for surgeons to choose an adequate technique to avoid injury during colorectal surgeries especiallyat the time of inferior mesenteric vein ligation.