Mowery AJ, et al. - Using a robust national database, researchers sought to provide an evaluation of the incidence of head and neck cancer after solid organ transplant, as well as the impact of transplant on head and neck cancer survival. According to results, history of transplant significantly predicted head and neck cancer in a study of 30,939,656 patients (37,969 solid organ transplants and 113,995 head and neck cancers), with relative risks ranging from 1.85 (thyroid) to 2.91 (salivary gland). The authors concluded that prior transplant was a risk factor for head and neck cancer development and worse overall survival for head and neck cancer patients in a large case-control study.