Cancer Risk by the Subtype of Alopecia

    June 2018 in “ Scientific Reports
    Ji Hyun Lee, Yumee Song, Kyung Do Han, Young Min Park, Jun Young Lee, Yong Gyu Park, Young Bok Lee
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    Studysummary This study reported that patients with alopecia areata or alopecia totalis/universalis have a slightly increased overall cancer risk compared to controls, with specific increases in thyroid, bladder, and prostate cancers depending on the alopecia type.
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    The study, involving 668,604 alopecia patients and 3,343,020 matched controls, found that individuals with alopecia areata (AA) and alopecia totalis/universalis (AT/AU) had a slightly increased overall cancer risk, with specific increases in thyroid cancer for both AA and AT/AU patients, and additional increases in bladder and prostate cancer risks for AA patients. The hazard ratios for overall cancer were 1.043 for AA and 1.07 for AT/AU. Despite these findings, there was no increased risk of skin cancer in AA patients. The study, which used data from the Korean National Health Insurance Service, highlighted the need for regular cancer monitoring in alopecia patients and further research to understand the relationship between alopecia subtypes and cancer risk. Limitations of the study included a lack of detailed information on alopecia characteristics, treatments, lifestyle factors, and follow-up duration.
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