I just found this article. Haven't read the whole thing yet, but it might shed some light on this topic.
Organ transplantation from deceased donors with cancer: is it safe?The article Abstrat said...
Abstract: The availability of donor organs continues to be insufficient to meet the needs of patients actively waiting for transplant. Consequently, there is continuing pressure to increase the donor organ pool while simultaneously assuring safety for the recipient population. The complication of donor malignancy transmission has been documented almost from the beginning of transplantation, and continues to be a concern today. The anecdotal nature of case reports and compiled series ensures that clinical decisions related to organ use from donors with malignancy will of necessity continue to be made on the basis of low-level evidence. Despite this limitation, the literature indicates that not all donor neoplasms have the same risk for transmission to the recipient, and it is necessary to consider the specific malignancy affecting the donor, as well as the condition of the recipient, before a decision is made to transplant or discard a given organ.
Published cases suggest that certain forms of neoplasia, such as melanoma, choriocarcinoma,
sarcoma, small cell carcinoma, or metastatic carcinomas serve as strong contraindications to
organ donation. In contrast, considerable experience exists to suggest that certain tumors of the
central nervous system, small subclinical prostate carcinomas, or small renal cell carcinomas
resected prior to transplant, among other tumors, should not in themselves disqualify an individual from donating organs in the appropriate circumstance. This review presents the case for considering organ transplantation in the setting of certain donor malignancies and discusses factors to be weighed in such decisions. Additionally, donors with a history of cancer are considered, and features that may aid in reaching a conclusion for or against transplantation of organs from these patients are presented.
Special section on PCa said...
Prostate carcinoma The American Cancer Society estimates 217,730 new
cases of prostate cancer in the US in 2010.16 Worldwide, the GLOBOCAN2008 Project of the International Agency for Research on Cancer estimated 899,000 new cases of prostate cancer in 2008, with the highest incidence (104.2 per 100,000) in the Australia/New Zealand region.47
Risk of tumor development is age-dependent, with the American Cancer Society estimating a 2%, 6%, and 8% risk of cancer in white males, and a 4%, 10%, and 11% risk in black males, in the 50–59, 60–69 and 70–79 year ranges, respectively. These figures are of concern, given the increasing use of elderly donors. In an evaluation of prostate glands from 340 organ donors, Yin et al20 found adenocarcinoma in a total of 41 (12%) donors, with 23.4% in the 50–59, 34.7% in the 60–69, and 45.5% frequency in the 70–81 year ranges.
Despite these figures, donor-associated prostate adenocarcinomas have only rarely been reported, with the original report by Loh et al frequently cited in the literature. The donor in that case had carcinoma extending into the seminal vesicles with metastases to the pelvic lymph nodes and adrenal glands (Stage IV), discovered after heart transplant had begun.
Kauffman et al 48 reported three organs transplanted from donor(s) with prostate carcinoma, with no evidence of transmission, based on the OPTN/UNOS database. A more recent report from the UNOS DTAC covering the years 2005–2009 showed five donors with prostate carcinoma, with no reports of confirmed malignancy transmission. 49 50 Pretagostini et al, reporting for the Italian Centro Na zionale Trapianti, found carcinoma of the prostate to be the commonest donor malignancy in their series, and reported no tumor transmission in organs recovered from three donors with in situ to intermediate degree tumors. They considered high degree prostate carcinoma a contraindication to transplant, but did not provide definitions of these terms.
In light of the near absence of case reports of donor associated prostate carcinomas despite increased use of elderly donors, it seems likely that small incidental prostate carcinomas restricted to the gland have extremely limited risk for transmission via standard organ transplantation. The same cannot be said for more advanced/metastatic tumors, although it would be presumptuous to be dogmatic with limited evidence. It seems prudent to examine the area at the time of organ removal and consider biopsy only of suspicious masses involving the prostatic region or beyond. However, at present, there is no compelling evidence to recommend routine biopsy of the prostate at the time of organ donation (ie, in the absence of a palpable lesion), especially since frozen section may have decreased sensitivity in detection of malignancy, Gleason score, and presence of extracapsular extension.
The above may explain why it is OK for men with PCa to donate organs after death, despite their PCa. But, it doesn't explain why living guys being treated for PCa couldn't donate a kidney.
-Gedman