Gatrointestinal (GI) Perforation
Gastrointestinal (GI) perforation occurs when there has been a complete penetration of the walls of the GI tract. Several things including ulcer, appendicitis (inflammation of the appendix), cancer, diverticulitis (inflammation of the large intestine), and trauma can cause GI perforation. When the GI tract is perforated, the contents of the GI flow into the abdomen and cause infection. GI perforation is a serious emergency and requires surgery. Signs and symptoms can include severe pain in the abdomen, nausea, vomiting, fever, and chills. Performing an X-ray, computed tomography (CT) scan, or examining the blood for signs of infection can diagnose GI perforation. Prognosis depends on the underlying cause of the perforation. For non-traumatic injuries time is required for the bacterial infection to subside and for surgical wounds to heal. References:
http://en.wikipedia.org/wiki/Gastrointestinal_perforation
http://www.fpnotebook.com/GI36.htm
http://www.nlm.nih.gov/medlineplus/ency/article/000235.htm