A Barium Swallow Study Leading to an Incidental Finding on a Screening Colonoscopy.

Barolith is a mixture of firm feces with barium sulfate, and a frequent cause of obstruction of the appendiceal lumen that can result in appendicitis. Nonetheless, some other complications like aspiration, allergic reaction, and bowel obstruction have also been reported.  We present the case of a 71-year-old man with a history of amyotrophic lateral sclerosis (ALS), who came to the gastroenterology clinic complaining of intermittent loose stools and dysphagia to solids for the past months. The patient underwent a barium swallow study six days prior and was completely normal. A colonoscopy was done showing normal appearing mucosa, with a whitish foreign object found on the appendiceal orifice. Removal of the barolith was done by means of a biopsy forceps. Our patient did not have any signs or symptoms of appendicitis prior to the procedure, and the successful removal of the barolith was achieved. Elderly patients, and patients with decreased gastrointestinal (GI) transit, could be a population at risk for barium retention/appendicitis; for this reason, more research studies should be done to assess possible preventive treatments.