Unusual image of lanthanum carbonate in the abdominal radiograph

Silvia Vila-Navarro, Gorgina Elisa Gomila-Roy, Adriana Hemfelt-Minobis, Sam Khorrami-Minaei, Daniel Ginard-Vicens
2012 Revista Espanola de Enfermedades Digestivas  
A 73-year-old male with history of advanced chronic kidney disease on haemodialysis was admitted to the emergency room due to one week of diffuse abdominal pain and diarrhoea. He had no pathological products in the stools or fever. Physical examination was anodyne and blood tests were compatible with his underlying disease. The results of microbiological tests of stools were also negative. The abdominal X-ray revealed the presence of calcium density accumulations distributed homogeneously
more » ... homogeneously through the colon and appendix (Fig. 1) . The patient denied recent studies with iodinated contrast. Reviewing his current medical treatment, lanthanum carbonate was needed to control a secondary hypophosphatemia. The abdominal X-ray was repeated 48 hours after discontinuation of the drug and showed a change in the distribution of the radiopaque material (Fig. 2) . DISCUSSION Lanthanum carbonate is a non-toxic non-absorbable heavy metal, which acts as a phosphate binder. In some cases, its accumulation in the digestive tract can result in radiopaque images, mimicking iodinated contrast. Abdominal discomfort
pmid:22849499 fatcat:jh3fzplu5barpjl3uwsvpo3kpe