Determination of diagnostic molecular profiles for intraduct lesions of the breast.

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Breast cancer originates in cells within breast ducts. The introduction of Breast Screening for breast cancer has led to a dramatic increase in the diagnosis of breast cancer which is confined to these ducts and has not spread to surrounding tissue. This is known as 'ductal carcinoma in situ' or DCIS. It is evident that DCIS is variable in its tendency to give rise to more advanced breast cancer. However, currently our ability to predict the potential agressiveness of a particular DCIS is limited. In this research we are proposing to develop new methods for evaluation of DCIS that will more accurately predict clinical behaviour. An important adjunct is to ensure that these methods can be practically applied in a routine diagnostic setting. Achievement of the aims of this project will assist treatment planning for patients diagnosed with DCIS. It will also provide important information about breast cancers diagnosed as a consequence of breast screening.