[inglor_cz]

Interestingly, there was a recent interest in a case of a surgeon who scratched himself when operating on a cancer patient, and developed cancer himself at the site of the scratch. The cancer was found to be identical to his patient's.

https://surgery.international/surgeon-diagnosed-with-patient...

The case is fairly old, from 1996. It re-surfaced recently.

https://www.nejm.org/doi/full/10.1056/NEJM199611143352004