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Needle localization in occult breast lesions.

J Landstrom1, G Osgood, S C Young

  • 1Department of General Surgery, Providence Hospital, Southfield, Michigan.

Journal of Surgical Oncology
|January 1, 1989
PubMed
Summary
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Needle localization aids early breast cancer detection. Microcalcifications with irregular density on mammograms strongly indicate malignancy, enabling timely diagnosis and treatment.

Area of Science:

  • Radiology
  • Oncology
  • Pathology

Background:

  • Nonpalpable breast lesions require accurate diagnostic methods.
  • Early detection of breast carcinoma improves patient outcomes.
  • Needle localization is a key technique for guiding biopsy of impalpable lesions.

Purpose of the Study:

  • To evaluate the efficacy of preoperative needle localization for nonpalpable breast lesions.
  • To determine the diagnostic accuracy of mammographic findings in distinguishing malignant from benign breast lesions.
  • To assess the stage of detected breast carcinomas and the incidence of lymph node metastasis.

Main Methods:

  • Review of mammographic, operative, and pathological data from 211 women.
  • Analysis of preoperative needle localization procedures for nonpalpable breast lesions.

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  • Correlation of mammographic findings with pathological diagnoses.

    • Main Results:

    • Carcinoma was detected in 10% of cases, with 81% being invasive and 19% noninvasive.
    • Minimal carcinoma (<5 mm invasive or in situ) accounted for 43% of cancers; 48% were less than 1 cm.
    • Axillary lymph node metastasis occurred in 10% of malignant cases. Microcalcifications were present in 81% of malignant and 33% of benign lesions. The combination of microcalcifications and irregular density was specific to malignancy.

    Conclusions:

    • Preoperative needle localization facilitates the early detection of stage I breast carcinoma.
    • Mammographic findings of microcalcifications combined with irregular density are highly indicative of malignancy.
    • These findings support the use of needle localization and detailed mammographic analysis for improved breast cancer diagnosis.