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Screening can detect aggressive breast cancer earlier

05.10.2018

Breast cancer is the most frequent form of cancer in women. The aim of systematic early detection is to reduce the number of deaths from breast cancer. With help from the North Rhine-Westphalian State Cancer Registry, evaluations were made of 53,375 examinations from the implementation phase of the screening, focusing on the detection of breast cancer in the screening process and at the end of the biennial interval after screenings in which nothing was detected. According to the analyses evidently makes it possible to make diagnoses – also of aggressive subtypes – at an earlier stage. Women who are 60 or older contract breast cancer more often than those between the ages of 50 and 59.

Breast cancer is the most frequent form of cancer in women. The aim of systematic early detection is to reduce the number of deaths from breast cancer. This is why the mammography screening programme has been built up in Germany since 2005, with the aim of offering every woman between the ages of 50 and 69 quality-controlled screening for the early detection of breast cancer.


Her2neu positiv

Referenzzentrum Mammographie am Universitätsklinikum Münster

Methodology

With help from the North Rhine-Westphalian State Cancer Registry, evaluations were made of 53,375 examinations from the implementation phase of the screening, focusing on the detection of breast cancer in the screening process and at the end of the biennial interval after screenings in which nothing was detected.

From these data, detection rates through early detection mammography screening were established for invasive breast cancer, as well as during the subsequent biennial interval. Based on immunohistochemical examinations, the determination of hormone receptors and the HER2/neu status, subtypes were created with respect to tumour aggressiveness: HER2 positive and triple negative breast carcinomas were defined as being aggressive.

Results

A detailed analysis of aggressive breast cancer among hormone receptor negative and HER2 positive carcinomas shows detection rates which are six times higher – and among triple negative carcinomas twice as high – in the screening than after the biennial interval. Aggressive invasive breast carcinomas have the highest rate of diagnosis in screening among women in the 60-69 age group. The stage distribution of aggressive invasive breast carcinomas is better than after the interval.

According to the scientific analyses mammography screening evidently makes it possible to make diagnoses – also of aggressive subtypes – at an earlier stage. Women who are 60 or older contract breast cancer more often than those between the ages of 50 and 59. “These results provide further evidence that a systematic programme for the early detection of breast cancer makes sense,” says Prof. Walter Heindel from the Reference Centre for Mammography at Münster University Hospital.

Wissenschaftliche Ansprechpartner:

PD Dr. med. Stefanie Weigel
Prof. Dr. med. Walter Heindel
Institut für Klinische Radiologie
Referenzzentrum Mammographie am Universitätsklinikum Münster
Universitätsklinikum Münster
Albert-Schweitzer-Campus 1 (Gebäude A1),
48149 Münster
Germany

Originalpublikation:

Prange A, Bokhof B, Polzer P, Tio J, Radke, I, Heidinger O, Heindel W, Weigel S. Higher Detection Rates of Biologically Aggressive Breast Cancers in Mammography Screening than in the Biennial Interval. Fortschr Röntgenstr 2018; DOI:10.1055/a-0657-3970

Dr. Kathrin Kottke | idw - Informationsdienst Wissenschaft
Further information:
https://www.uni-muenster.de/

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