Single-Lung Transplant Recipient with Primary Carcinoma Metastasis from Native Lung to Donor Lung Allograft

We report on a patient with a single-lung transplant who subsequently developed pulmonary squamous cell carcinoma in the native lung and metastasizes to the donor lung. The significance of this case is that it confirms that lung cancers can metastasis via the blood stream early. The initial finding of metastasis in the transplanted lung, which is devoid of a lymphatic network with the host, supports this mode of spreading.