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Anal and rectal cancer in Crohn's disease
Linköping University, Faculty of Health Sciences. Linköping University, Department of Biomedicine and Surgery, Surgery. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Surgery in Östergötland.
Linköping University, Faculty of Health Sciences. Linköping University, Department of Biomedicine and Surgery, Surgery. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Surgery in Östergötland.
Linköping University, Faculty of Health Sciences. Linköping University, Department of Biomedicine and Surgery, Surgery. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Surgery in Östergötland.
2003 (English)In: Colorectal Disease, ISSN 1462-8910, E-ISSN 1463-1318, Vol. 5, no 5, 490-495 p.Article in journal (Refereed) Published
Abstract [en]

Several epidemiological studies have been published regarding the risk of Crohn's disease- associated colorectal cancer. The findings are, however, contradictory and it has been particularly difficult to obtain indisputable information on the incidence of cancer limited to the rectum and the anus. During 1987-2000 rectal or anal cancer was diagnosed in 335 patients in Sweden (153 males, 182 females). In other words, approximately 3 Crohn patients per million inhabitants were diagnosed with rectal or anal cancer every year during that time period which is 1% of the total number of cases. At diagnosis of cancer 36% were aged below 50 years and 58% below 60 years. Corresponding figures for all cases of anal and rectal cancer were 5% and 18%, respectively. Present knowledge from the literature implies that there is an increased risk of rectal and anal cancer only in Crohn's disease patients with severe proctitis or severe chronic perianal disease. However, the rectal remnant must also be considered a risk factor. Multimodal treatment is similar to that in sporadic cancer but proctectomy and total or partial colectomy is added depending on the extent of the Crohn's disease. The outcome is the same as in sporadic cancer at a corresponding stage but the prognosis is often poor due to the advanced stage of cancer at diagnosis. We suggest that six high-risk groups should be recommended annual surveillance after a duration of Crohn's disease of 15 years including extensive colitis, chronic severe anorectal disese, rectal remnant, strictures, bypassed segments and sclerosing cholangitis.

Place, publisher, year, edition, pages
2003. Vol. 5, no 5, 490-495 p.
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Medical and Health Sciences
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URN: urn:nbn:se:liu:diva-25277DOI: 10.1046/j.1463-1318.2003.00510.xLocal ID: 9717OAI: oai:DiVA.org:liu-25277DiVA: diva2:245605
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2017-12-13

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Sjödahl, RuneMyrelid, PärSöderholm, Johan D

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