"Barium peritonitis is a rare complication of gastrointestinal barium studies, and occurs when there is gastrointestinal tract perforation and spillage of barium contrast agent into the peritoneal cavity, resulting in peritonitis, granuloma and stone formation 1."
"acute: chemical peritonitis occurs with the development of a large volume of exudative ascites; hypovolaemic shock can subsequently develop"
"chronic: extensive fibrosis develops around barium with granuloma formation; adhesions and subsequent small bowel obstruction are common"