Obstructing colon cancer presenting as toxic megacolon

Introduction: Colon cancer is the most frequent cause of colonic obstruction which usually manifested by distention, bloating, and pain. Colonic with a competent ileocecal valve risk factor for complications such as ischemia, necrosis, perforation, but toxic megacolon seldom mentioned in literature. Case report: This case describes patient left sided colon presenting initially obstructive symptoms that developed into serious within few hours. Emergent surgery was performed. Descending transverse were 20cm diameter so hemicolectomy performed end colostomy. In our literature review, several references mention potential megacolon, no reported source to state this. A PubMed search did not offer any results associated when C. difficile or colitis excluded. Conclusion: megacolon. Making late decision perform urgent increase rate worse prognosis.