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dc.contributor.authorEllis, IOen_US
dc.contributor.authorColeman, Den_US
dc.contributor.authorWells, Cen_US
dc.contributor.authorKodikara, Sen_US
dc.contributor.authorPaish, EMen_US
dc.contributor.authorMoss, Sen_US
dc.contributor.authorAl-sam, Sen_US
dc.contributor.authorAnderson, Nen_US
dc.contributor.authorBobrow, Len_US
dc.contributor.authorBuley, Ien_US
dc.contributor.authorConnolly, CEen_US
dc.contributor.authorDallimore, NSen_US
dc.contributor.authorHales, Sen_US
dc.contributor.authorHanby, Aen_US
dc.contributor.authorHumphreys, Sen_US
dc.contributor.authorKnox, Fen_US
dc.contributor.authorLowe, Jen_US
dc.contributor.authorMacartney, Jen_US
dc.contributor.authorNash, Ren_US
dc.contributor.authorParham, Den_US
dc.contributor.authorPatnick, Jen_US
dc.contributor.authorPinder, SEen_US
dc.contributor.authorQuinn, CMen_US
dc.contributor.authorRobertson, AJen_US
dc.contributor.authorShrimankar, Jen_US
dc.contributor.authorWalker, RAen_US
dc.contributor.authorWinder, Ren_US
dc.date.accessioned2018-09-04T11:56:20Z
dc.date.issued2006en_US
dc.identifier2en_US
dc.identifier.citationJournal of Clinical Pathology, 2006, 59 pp. 138 - 145en_US
dc.identifier.issn0021-9746en_US
dc.identifier.urihttps://repository.icr.ac.uk/handle/internal/2542
dc.identifier.doi10.1136/jcp.2004.025551en_US
dc.description.abstractBackground: This article presents the results and observed effects of the UK National Health Service Breast Screening Programme (NHSBSP) external quality assurance scheme in breast histopathology. Aims/Methods: The major objectives were to monitor and improve the consistency of diagnoses made by pathologists and the quality of prognostic information in pathology reports. The scheme is based on a twice yearly circulation of 12 cases to over 600 registered participants. The level of agreement was generally measured using κ statistics. Results: Four main situations were encountered with respect to diagnostic consistency, namely: (1) where consistency is naturally very high—this included diagnosing in situ and invasive carcinomas (and certain distinctive subtypes) and uncomplicated benign lesions; (2) where the level of consistency was low but could be improved by making guidelines more detailed and explicit—this included histological grading; (3) where consistency could be improved but only by changing the system of classification—this included classification of ductal carcinoma in situ; and (4) where no improvement in consistency could be achieved—this included diagnosing atypical hyperplasia and reporting vascular invasion. Size measurements were more consistent for invasive than in situ carcinomas. Even in cases where there is a high level of agreement on tumour size, a few widely outlying measurements were encountered, for which no explanation is readily forthcoming. Conclusions: These results broadly confirm the robustness of the systems of breast disease diagnosis and classification adopted by the NHSBSP, and also identify areas where improvement or new approaches are required.en_US
dc.format.extent138 - 145en_US
dc.publisherBMJ Publishing Groupen_US
dc.titleImpact of a national external quality assessment scheme for breast pathology in the UKen_US
dc.typeJournal Article
rioxxterms.versionofrecord10.1136/jcp.2004.025551en_US
rioxxterms.licenseref.startdate2006en_US
rioxxterms.typeJournal Article/Reviewen_US
dc.relation.isPartOfJournal of Clinical Pathologyen_US
pubs.notesNot knownen_US
pubs.organisational-group/ICR
pubs.volume59en_US
pubs.embargo.termsNot knownen_US
dc.contributor.icrauthorColeman, Derecken_US


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