atients was 3.1 percent. When nonmelanoma skin cancer and carcinoma in situ of the cervix were excluded, incidence was 2.3 percent. That risk was 1.85 times that of the general population. The median time to diagnosis was almost 7 years after transplant. The most commonly reported second cancers were cancers of the skin (basal and squamous cell), lung, oral cavity, and colon.
Furthermore, data analysis showed that the risk more than tripled for patients who received their transplant when they were over 40 years of age. The study also identified a new risk factor: patients who received stem cells from a female donor had almost quadrupled the risk of a second solid cancer, a risk that further increased when the patient was male. "This observation has not been previously reported in the literature and the explanation for this finding is uncertain," say the authors.
"Since the risk of developing a solid neoplasm post-allogeneic transplantation continues to increase with time," suggest the authors, "extended follow-up will be needed to more fully assess the incidence and risk factors for their development."
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Source:John Wiley & Sons, Inc.
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