1982 Volume 24 Issue 10 Pages 1593-1597_1
A 62 years old female with irritable colon syndrome and rheumatoid arthritis developed bloody stool soon after having had a barium enema study. Eight months later, abdominal plain X-ray film showed a dense round shadow (5.2×2.8cm) over the pubic bone. Barium enema study and endoscopic examination of the rectum were carried out to ascertain the nature of this abnormal shadow. Double contrast films of barium enema study revealed a slightly protruberant plate-like shadow on the anterior wall of the rectum, just above the area where the enema tip contacted the wall of the rectum. By endoscopic examination, a well demarcated white-yellowish elevated lesion with a reddish depressed area in the center was seen on the anterior wall of the rectum, at 5cm from anus. Two and half years later, this elevated lesion still existed, but was not so well demarcated as the previous time. Histological findings of the biopsied specimen showed proliferation of macrophages and histiocytes with phagocytosed barium crystals. These findings were compatible with that of a barium granuloma.
