Volume 2 Supplement 2

Symposium Mammographicum 2000

Open Access

Does preoperative diagnosis reduce the number of operations required for treatment of screen-detected breast cancer?

  • G Ralleigh1,
  • M Michell1,
  • S Henderson1 and
  • S Bose1
Breast Cancer Research20002(Suppl 2):A30

DOI: 10.1186/bcr222

Published: 1 October 2000

Full text

A minimum standard for preoperative diagnosis of breast cancer of 70% has been set by the National Health Service Breast Screening Programme, (NHSBSP). Nationally, rates are 80% [BASO 1998-1999] and the rate in the southeast Thames region approaches 90%. Confirmation of malignancy by fine needle aspiration cytology or core biopsy avoids surgical biopsy, thus reducing the number of operations required for patients with breast cancer. We reviewed data from the regional breast screening QA database on 4402 cancers diagnosed in the years 1990 to 1999 of the NHSBSP in the southeast Thames region to measure the effect of a positive preoperative diagnosis (C5 cytology or B5 histology) on the number of operations required for treatment.

Conclusion

Women with screen-detected cancer with no preoperative diagnosis are between 2 and 4.5 times more likely to require two or more operations.
Table

Preoperative diagnosis rates and percentage of patients with two or more operations in invasive and non-invasive screen-detected cancers

 

Non-invasive

Non-invasive

Non-invasive

Invasive

Invasive

Invasive

 

1990-1993

1993-1996

1996-1999

1990-1993

1993-1996

1996-1999

Preop diagnosis rate

18%

36%

68%

37%

52%

84%

% with 2 or more operations without preop diagnosis

38%

54%

42%

27%

43%

50%

% with 2 or more operations with preop diagnosis

17%

34%

26%

6%

11%

11%

Authors’ Affiliations

(1)
Breast Assessment Unit, King's College Hospital

Copyright

© Current Science Ltd 2000

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