Nonpalpable, needle-localized mammographic abnormalities: pathologic correlation in 219 patients:

Area of Science:

• Radiology
• Oncology
• Pathology

Background:

• Nonpalpable breast lesions require accurate diagnostic methods.
• Needle localization is a key technique for biopsy guidance.

Purpose of the Study:

• To correlate mammographic findings with pathologic results for nonpalpable breast lesions.
• To assess the predictive value of lesion characteristics for malignancy.

Main Methods:

• Review of 219 patients undergoing preoperative needle localization for nonpalpable breast lesions.
• Evaluation of mammographic features including microcalcifications and mass configurations.
• Correlation of imaging findings with histopathologic diagnoses.

Main Results:

• Smooth masses were consistently benign.
• Five or more microcalcifications and stellate masses showed a high incidence of malignancy.
• Irregular masses without microcalcifications had a low malignancy rate.
• In 63 breast cancer patients, 88% had no axillary lymph node metastasis.

Conclusions:

• Mammographic features can predict malignancy in nonpalpable breast lesions.
• Needle localization facilitates accurate diagnosis and staging.
• Early detection of breast cancer is associated with favorable nodal status.