Aggravated lymphoid hyperplasia mimicking barium-induced appendicitis.

Barium_induced appendicitis was reported in the literature, but its association with lymphoid hyperplasia has not been reported. A 58_year_old woman was admitted to the hospital with right lower quadrant pain. Barium enema examination performed for evaluation of abdominal pain revealed no pathological finding(s). She was readmitted with symptoms of appendicitis 15 days after barium enema. There was an opacity overlying the right sacral ala on her plain abdominal radiograph. She was operated with presumptive diagnosis of barium_induced appendicitis and pathological examination was consistent with lymphoid hyperplasia. Lymphoid hyperplasia and barium_induced appendicitis were discussed in this report.