REPORT: Organ Donor Who Had Undetected Metastasized Breast Cancer Passed It On To All 4 of Her Organ Recipients

Wow.

Few would argue with the importance of organ donation—138 million people in the U.S. have signed up as organ donors, and with more than 114 million Americans on the organ transplant waiting list as of August, the need for donors is greater than ever.

While typical complications for a recipient of a donated organ include rejection, surgery complications and infection, a recent case in the U.K. brought to light yet another risk even doctors couldn’t foresee: Donations by a woman with undiagnosed breast cancer resulted in four of the recipients of her organs contracting a “histologically similar” type of breast cancer over a period of 16 months to six years. Three out of four of them eventually died.

While donor organ recipients contracting cancer from the tissue isn’t unprecedented, it is extremely rare — the risk is considered to be less than 0.1 percent. But even then it’s usually only one patient who gets cancer, not four, according to the case study, published in the American Journal of Transplantation.

The donor, a 53-year-old woman who died of complications from a stroke, was subjected to all the usual tests before her organs were harvested, including a physical exam, an X-ray and an ultrasound. All came back negative for cancer. Both kidneys and lungs and the liver were then distributed to four donors: a 32-year-old man and 62-year-old woman each received a kidney, a 42-year-old woman received the lungs, and a 59-year-old woman received the liver.

One by one, the donors eventually became ill with breast cancer — including the 32-year-old man, who was found to have breast cancer cells in his donated kidney. All but the man eventually succumbed to the cancer, which doctors believe spread more quickly due to immunosuppressive drugs the patients were taking to prevent organ rejection.

DNA analysis proved the original donor was the source of the cancer; doctors believe she had undetected metastasized breast cancer at the time of donation, and that each of her donated organs contained clusters of cancer cells.

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