To remove a portion of the stomach in a gastrectomy, the surgeon gains access to the stomach via an incision in the abdomen. The ligaments connecting the stomach to the spleen and colon are severed (B). The duodenum is clamped and separated from the bottom of the stomach, or pylorus (C). The end of the duodenum will be stitched closed. The stomach itself is clamped, and the portion to be removed is severed (D). The remaining stomach is attached to the jejunum, another portion of the small intestine (E). (Illustration by GGS Inc.)