I heard about this on the radio yesterday, but Nut Allergy Passed Through Liver Transplant provides a more detailed story:
An Australian man who received a liver transplant developed a life-threatening nut allergy apparently passed on through the donated organ, doctors reported Monday.
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The liver donor was a 15-year-old boy whose own allergic reaction to peanuts had caused his death. His organs were donated to four different patients, but only the recipient of the liver acquired the nut allergy.
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The recipient of the liver was a 60-year-old man with chronic hepatitis B and a liver tumor. A day after he was sent home from the hospital, the man developed a severe allergic reaction after eating cashews. Nuts had been a regular part of his diet prior to the transplant, causing no problems.He was taken to a hospital and treated for tightness in his throat, blurred vision, nausea, vomiting and diarrhea. Tests confirmed an allergy to cashews, peanuts and sesame seeds. The patient was sent home with an epinephrine shot to self-inject in case of a future allergic reaction.
He had to use the shot again 32 weeks after his transplant; this time he was accidentally exposed to peanuts. More tests confirmed antibodies to nuts were present in his system, but in lesser amounts than during his first bout with anaphylactic shock, or potentially life-threatening allergic reaction.
Two years following his liver transplant, the patient died from complications related to the original liver tumor.