Malignancy from organ transplants?

I've always wondered about this: Is it possible to get cancer from a donated organ? In theory the organs are inspected and come from healthy donors, but microscopic lesions would be undetectable. Furthermore, the recipients are on immune suppressants, making the cancer even more likely to develop. In fact it's a common occurrence in recipients to develop de-novo tumours after transplantation, but it's usually from their own tissue and a direct result from the drugs. For example, melanomas are 1.6-2.5 times more likely in the transplant population. Well a story this week explains how a 15y old boy who was mis-diagnosed with meningitis but who in fact had lymphoma, ended up causing the death of 2 of the four recipients of his tainted organs. The other two had the organs removed and are undergoing chemo. I wonder if they have improved chances of survival once they are off the immunosuppressants since the cancers are mismatched or whether the match required for transplantation is close enough for the tumour to behave like a de-novo host tumour... The Lancet has a great review on how to threat both types of malignancies:

"Transmission of an undetected tumour in the donor is rare (incidence 0·02%).⁷⁷ The question of whether a tumour in the recipient has arisen de novo or by transmittance from the donor can be answered by doing a biopsy of the tumour and cross karyotyping the recipient and donor tissue to establish tumour origin. [...] The overall mortality from donor-related malignancies is calculated at 38%, with that of transmitted tumours at 46% and derived de-novo tumours at 33%. Cadaveric-donor-related tumour mortality is 0·007% (8 of 108 062 recipients).⁷⁷"