Introduction
A retrospective study of cases of DCIS diagnosed in the West Midlands during the period 1 April 1988–31 March 1999 was undertaken. Of the 840 cases diagnosed, full pathology and treatment information was available for 586 cases. Following exclusions a retrospective radiological review was completed on 519 of these cases. Follow-up data were attained for a maximum of 14 years and a minimum of 3 years.