Lanthanum carbonate has a radiopaque appearance on the plain abdominal radiography.
An 84-year-old woman presented to her local emergency department for abdominal pain. Her medical history included hemodialysis in the treatment of chronic renal failure, Parkinson's disease, chronic atrial fibrillation, chronic constipation, appendicectomy and cholecystectomy. The patient complained of diffuse abdominal pain for 4 days, associated with nausea and vomiting in the last 24 hours. Physical examination revealed a soft and depressible abdomen, diffusely painful, without signs of peritoneal irritation. A digital rectal exam revealed large amount of stool in the rectal vault without palpable masses. Blood tests showed a creatinine level of 2.7 mg/dl due to chronic renal failure and the plain abdominal radiography revealed a dolichocolon completely contrasted. The patient denied the realization of any medical imaging-proofs with oral or rectal contrast. Reviewing home treatment, the patient was taking lanthanum carbonate (2 tablets of 750 mg per day) since 1 month ago, a drug that contrasts the digestive tract. Appreciating contrast in the colon, intestinal subocclusion was excluded and the clinical picture was attributed to her chronic constipation. In conclusion, it should be noted that lanthanum carbonate contrasts the digestive tract, with radiopaque appearance on the plain abdominal radiography and without any pathological significance.
Cirugía General y del Aparato Digestivo, Hospital Universitario Virgen de la Arrixaca, España.
José
J
Ruiz Pardo
Hospital Universitario Virgen de la Arrixaca. Murcia.
Noelia
N
Ibáñez Cánovas
Hospital Universitario Virgen de la Arrixaca. Murcia.
Jesús
J
Abrisqueta Carrión
Hospital Universitario Virgen de la Arrixaca. Murcia.
Juan Antonio
JA
Luján Mompeán
Hospital Universitario Virgen de la Arrixaca. Murcia.
Pascual
P
Parrilla Paricio
D000005:Abdomen / Q000000981:diagnostic imaging*; D015746:Abdominal Pain / Q000000981:diagnostic imaging*; D000369:Aged, 80 and over; D003248:Constipation / Q000150:complications / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D007676:Kidney Failure, Chronic / Q000188:drug therapy; D007811:Lanthanum / Q000627:therapeutic use; D011860:Radiography, Abdominal
C119467:lanthanum carbonate; D007811:Lanthanum