Moreover, although this study is larger than all previously published cohort studies combined, we made multiple comparisons that may have produced chance findings, a potential problem when it comes to organ-specific cancer risks.
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Selection bias must also be considered as a theoretical limitation. Bowen disease is an indolent lesion, typically presenting as an isolated, well-demarcated, scaly plaque, with an average reported delay from onset of disease to diagnosis of 5 to 8 years.
However, if selection mechanisms skewed the cohort, we would expect that our patients had the closest contact to health care and would be more likely to have their Bowen disease diagnosed and reported to the DCR. The absence of any major discrepancy between the cancer occurrence in the study cohort and the background population suggests that patients with Bowen disease, including non-participants in this study, are unlikely to suffer from any major excess risk of internal cancer. In conclusion, we confirm previous reports of an increased risk of nonmelanoma skin cancers among patients with Bowen disease.
However, patients with Bowen disease appear to not be at unusual risk for internal malignant neoplasms. Nevertheless, we observed elevated risks for lung cancer among men who had Bowen disease diagnosed at a young age and among men whose skin lesion was diagnosed at a sun-protected anatomic site. These associations and the male excess of leukemias following Bowen disease need further study.
This study was supported by grants from the Grosserer L. All Rights Reserved. Table 1. View Large Download. Plast Reconstr Surg. Br J Dermatol. Cancer Registration Principles and Methods. Am J Prev Med.
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J Am Acad Dermatol. Am J Epidemiol. Cancer Epidemiology and Prevention. Ann Intern Med.
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Citations View Metrics. Get more advice on staying safe in the sun. Page last reviewed: 21 May Next review due: 21 May Bowen's disease. It's estimated this happens in up to 1 in 20 to 1 in 30 people with untreated Bowen's disease. Some people have more than 1 patch.
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Basal cell carcinoma symptoms BCC often has no symptoms and tends to grow slowly without spreading to other parts of the body. Symptoms of BCC may include: a pearly lump a scaly, dry area that is shiny and pale or bright pink in colour. For more information Reduce your risk fact sheets Work outdoors? View more Cancer Booklets including information on surgery, radiotherapy and chemotherapy. How you can help You can support Cancer Council by volunteering your time, participating in an event or making a donation to help fund our cancer research, education and support services.
What is Bowen’s Disease?
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