The unusual case was diagnosed through a collaboration between the US Centers for Disease Control and the UK's Natural History Museum. The researchers say that scans of a very ill man in Colombia who was also HIV positive reveaked what "looked like cancer, but the tumours were made of cells that were not human." The tumours had come from the man's resident tapeworm which had developed cancer and somehow spread the disease to its host, according to the scientists, whose study published in the New England Journal of Medicine describes "the invasion of human tissue by abnormal, proliferating, genetically altered tapeworm cells as a novel disease mechanism." The man died 72 hours after researchers pinpointed the cause of the tumours, Live Science reports.
Source: usatoday.com
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