This surgery to remove a portion of the colon, or abdominal colectomy, is not to be confused with colon cancer surgery. The removal of the intestine, in this case has less to do with a colon mass (tumor), and more to do with a massive colon.
A couple of enlarged colon symptoms that are not addressed in the article are:
Cramping in the abdominal area or a dull ache, nearly constant diarrhea (up to twenty times a day), fever, weight loss and anemia. These are also symptoms of Crohnes disease.