The Biomedical Imaging and Intervention Journal (biij), like all other scientific journals, is concerned with the serious issue of plagiarism. The Publications Committee of the International Organization of Medical Physics (IOMP) has prepared an editorial on plagiarism, which is reproduced here with some modifications, with permission from the IOMP. In addition, this editorial is also consistent with the Policy on Plagiarism of World Association of Medical Editors (WAME).