Abdominal Findings   Possible Cause
  Greenish fluid and gas

Injury to liver, spleen or mesentery

  Free bowel contents and gas in peritoneum

Ruptured ectopic pregnancy

  Free blood in peritoneum: with trauma

Appendicitis, diverticulitis or perforation of the bowel

  Free blood in peritoneum: female, no history of trauma

Intestinal obstruction or paralytic ileus

  Purulent exudate

  Distended loop of bowel

  Perforation of stomach or duodenum

  Bowel perforation