Contrast media triggering cutaneous graft-versus-host disease.

Adverse reactions to iodinated contrast media are varied and known to develop in patients with asthma and a history of allergy. We describe three successful allogeneic bone marrow transplantation (BMT) patients, who all developed dermal graft-versus-host disease (GVHD) after receiving contrast media. Cutaneous GVHD triggered by contrast media has not been reported to date and has implications for the assessment, monitoring and treatment of patients during the post-transplant period.