View related articles Citing articles: 2 View citing articles Prefa ce Ackn owled gement Background Aims of this study Incidence o f cancer in the N o rdic countries Screening for cancer Contents M ass-screening programmes for cancer in the N o rdic countries Effect of a scree ning progra mme o n m o rta li ty Effect o f a screening progra mme o n qua lity o f life Econo mic evalua ti o n o f a screening programme M a teri a l M ethod s Predictio ns Evalua ti o n of mortality reductio n due to screening Estima ti o n o f trea tment costs Estima ti o n of costs with a nd witho ut screening Estima ti o n o f qua lity o f li fe a nd cost-utilityResults M orta lity predi cti o ns Breast ca ncer Cervical cancer Colo recta l cancer Summary C osts Breas t ca ncer Cervical ca ncer Colo recta l cancer Summary Qua lity o f life Cost-utility a na lysis Breast ca ncer Cervical ca ncer Colo recta l cancer Summa ry Discussio n Mortality p redictio ns M o rta lity reductio n Costs Qua lity of life Summary a nd conclusio ns References Appendi x I : Breast ca ncer Appendi x 2: Cervi cal ca ncer Appendi x 3: Colo rectal cancer, fem a les Appendi x 4: Colo recta l ca ncer, m a les A ppendi x 5: Estima ted cost a ttributed to cervica l ca ncer in the absence of scree ning a nd if the F innish screening policy had been established iii

Identification of a mass being clearly visible suggests strongly the presence of small bowel adenocarcinoma in Crohn disease patients but adenocarcinoma may be completely indistinguishable from benign fibrotic or acute inflammatory stricture. Knowledge of these findings is critical to help suggest the diagnosis of this rare but severe complication of Crohn disease.

Colorectal cancer in IBD displays two main features on CT. Type 2 tumors and free-fluid effusion correlate with presence of signet ring cells. Knowledge of these findings is critical to help suggest the diagnosis.

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