This narrative review from a European transplant dermatology network looked at skin cancer after retransplantation, a group that often needs heavier immunosuppression for a second or third graft. Kidney and heart registry data identify retransplantation as a marker of higher post-transplant skin cancer risk. The only cohort reporting skin outcomes after retransplantation, in kidney recipients who already had squamous cell carcinoma, found more aggressive tumours afterwards.
Existing risk tools do not account for retransplantation or cumulative immunosuppression. The authors propose sorting retransplanted patients into five tiers by previous skin cancer history: none, a single non-aggressive squamous cell carcinoma, several, a histologically aggressive one, and metastatic disease.
This is a framework built on limited data, and the authors are clear that it does not set surveillance intervals. Its practical value is as a prompt: when a transplant team lists a patient for a second graft, the dermatology history should be reviewed and follow-up tightened for those already in the higher tiers.
- Ask the transplant team to notify dermatology when a patient is listed for retransplantation.
- Review previous skin cancer history and histology before a second graft.
- Consider closer follow-up for patients with multiple, aggressive or metastatic squamous cell carcinoma before retransplant.
- Reinforce sun protection and self-examination at each transplant milestone.
- Use the tiers to guide judgement, not as a fixed surveillance schedule.
Why it matters
Current risk tools treat a second transplant like a first, though the immunosuppressive burden is heavier.
Don't overread it
The five-tier framework is a proposal from limited evidence and has not been tested prospectively.
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