Nonpalpable breast lesions discovered by mammography

Area of Science:

• Radiology
• Oncology
• Surgical Pathology

Background:

• Specimen mammography has been utilized since 1976 for localizing and confirming the excision of nonpalpable breast lesions identified via mammography.
• This retrospective study analyzes the efficacy of specimen mammography in a clinical setting.

Purpose of the Study:

• To evaluate the effectiveness of specimen mammography in localizing and confirming the removal of nonpalpable breast lesions.
• To assess the diagnostic accuracy of frozen-section diagnosis compared to permanent sections.
• To determine the value of needle localization in surgical excision of mammographically detected abnormalities.

Main Methods:

• A review of 40 patients undergoing specimen mammography between January 1976 and May 1979.
• Analysis of surgical procedures including axillary lymph node excision.
• Correlation of frozen-section diagnoses with permanent section diagnoses.
• Utilization of needle localization for guiding biopsy and repeat biopsies.

Main Results:

• Out of 40 patients, 11 were diagnosed with carcinoma.
• Nine patients with carcinoma underwent axillary lymph node excision; none had positive nodes.
• Frozen-section diagnosis showed good correlation with permanent sections when taken from the most suspicious area.
• Needle localization proved valuable in ensuring complete excision of mammographic abnormalities.
• Three patients with persistent lesions were successfully managed with repeat biopsy using specimen roentgenography and needle localization.

Conclusions:

• Specimen mammography is a valuable tool for the localization and confirmation of nonpalpable breast lesion removal.
• Frozen-section diagnosis is reliable when performed on the most suspicious tissue.
• Needle localization enhances the accuracy of excising mammographically detected breast lesions.
• The technique facilitates successful management of residual or persistent mammographic abnormalities.