John Forsythe, Medical Director for Organ Donation and Transplantation at NHS Blood and Transplant, says,
We can’t talk about the medical history of the donor or the recipients but we can confirm that an investigation found all processes were followed correctly. For all potential donors, we carefully check their medical history and carry out new tests. If an abnormality is found during organ retrieval, we will run a biopsy.
Transplantation needs to take place quickly and usually follows an unexpected death. In very rare cases, it is possible that the donor has a very small tumour which cannot be picked up by the tests which can be performed in the limited time available prior to transplant.