Adverse Occurrence type:
(Council of Europe, 2018): To provide a valid assessment, complete tumour resection (R0) prior to transplantation is required for the acceptance of all organs; additionally, tumour-free margins are a prerequisite for transplant of the affected kidney. The contralateral kidney should always be examined for synchronous RCC. RCC < 1 cm (Stage T1a AJCC 8th ed.) and nucleolar grade I/II (Fuhrman grade I/II) can be considered minimal risk for transmission. RCC 1-4 cm (Stage T1a AJCC 8th ed.) and nucleolar grade I/II (Fuhrman grade I/II) are considered low risk. RCC > 4-7 cm (Stage T1b AJCC 8th ed.) and nucleolar grade I/II (Fuhrman grade I/II) are considered intermediate risk. RCC > 7 cm (Stage T2 AJCC 8th ed.) and nucleolar grade I/II (Fuhrman grade I/II) are considered high risk. RCC with extension beyond the kidney (Stages T3 or T4 AJCC 8th ed.) is considered a contraindication to transplant. All RCC with nucleolar grade III/IV (Fuhrman grade III/IV) are considered high risk for transmission. Contralateral kidneys and other organs that are uninvolved by carcinoma are considered to represent minimal risk for transplantation when the RCC in the involved kidney is 4 cm or less and Fuhrman or nucleolar grade I-II. Followup surveillance is recommended. In the case of a donor with a history of renal cell carcinoma, the transmission risk of treated RCC depends on the recurrence-free follow-up period. In general, in the first 5 years after initial diagnosis, risk categories correspond to those stated above (RCC diagnosed during donor procurement) if there is no suspicion of tumour recurrence in the donor. After this time, the risk of advanced stages may decrease.
Alerting signals, symptoms, evidence of occurrence:
IPITTR. 14 kidneys with small RCC incidentally discovered at the time of donor kidney procurement, tumors excised ex vivo and the kidney transplanted. 11 kidneys from living related donors and 3 from DD. 8 Furhman II/VI and 6 Furhman I /VI. Follow up: median 69m. No RCC transmission.
Demonstration of imputability or root cause:
No RCC transmission.