What is Sigmoid Colon Cancer? The colon is located in the large
intestine, and is divided into several regions. Each region of
the colon has specific responsibilities to carry out as part of
the human digestive tract. The sigmoid region of the colon is
located immediately above the rectum, and below the descending
colon. Sigmoid colon cancer, then, are cancerous cells that are
within the sigmoid region of the colon. Treating sigmoid colon
cancer depends on what stage of cancer the patient is in when
treatment begins.Stages of Sigmoid Colon Cancer There are three
stages to sigmoid colon cancer, and the stages are determined by
the size of the tumor and to what degree the tumor has
penetrated. Stage 1 cancer is the classification for cancerous
tumors that are small in size, and those that have no yet
penetrated the mucosal layer of the colon. Stage 2 sigmoid colon
cancer include tumors that have penetrated the muscle wall of
the colon, and are larger than tumors in stage 1 cancer. Stage 3
sigmoid colon cancer i