Surgeons in China transplanted a genetically modified pig liver segment into a patient with cancer as an auxiliary graft; the xenograft supported metabolic function for 38 days before being removed for complications. The team reported secretion of bile, pig albumin and clotting factors, and managed immune‑mediated thrombotic microangiopathy with immunosuppression and plasma exchange prior to explant. Results published in the Journal of Hepatology document transient physiological support from a porcine organ and add to accelerating clinical xenotransplantation efforts.