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Related Experiment Videos

Mammographically indeterminate microcalcifications--can we do any better?

L E Albertyn1

  • 1Department of Radiology, Queen Elizabeth Hospital, Woodville, South Australia.

Australasian Radiology
|November 1, 1991
PubMed
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Mammographic screening for breast cancer identified microcalcifications requiring further investigation. Many indeterminate calcifications were benign, highlighting the need for improved diagnostic accuracy in mammography.

Area of Science:

  • Radiology
  • Oncology
  • Pathology

Background:

  • Mammographic screening programs aim to detect breast cancer early.
  • Microcalcifications are a common mammographic finding requiring careful assessment.

Purpose of the Study:

  • To evaluate the diagnostic yield of microcalcifications detected during mammographic screening.
  • To assess the proportion of indeterminate calcifications that prove malignant versus benign.

Main Methods:

  • Retrospective analysis of mammographic screening data from the South Australian Breast X-ray Service.
  • Inclusion of women with microcalcifications referred for histology after assessment.
  • Exclusion of obvious mass lesions and clearly benign calcifications.

Main Results:

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  • 0.73% of screened women were referred for histology due to microcalcifications.
  • 75% of referred calcifications were indeterminate.
  • Only 15% of indeterminate calcifications were malignant; one-third were mammographically occult.
  • High discordance rates in benign lesions and unreliable predictors of histology were noted.

Conclusions:

  • Current mammographic techniques are insufficient for definitive microcalcification assessment in all cases.
  • A significant proportion of women undergo invasive procedures for benign microcalcifications.
  • Improved histopathological correlation and performance monitoring are crucial to reduce unnecessary biopsies and refine screening protocols.