Separately, mammographic BI-RADS 4 category yielded PPV3 of 34.5% (40/116 malignant microcalcifications), and BI-RADS 5 had PPV3 of 88.9% (8/9 malignant).
Also, malignant microcalcifications in our study were more commonly visualized than benign (85.4% vs.
The difficulty in classification of benign and malignant microcalcifications
also causes a significant problem in medical image processing.
However, many of the cases with no signs of neoductgenesis also presented with malignant microcalcifications
on the mammograms.
have shown that the Type II microcalcifications manufactured in malignant ducts have a higher concentration of protein compared with calcium, and used this strategy to distinguish benign from malignant microcalcifications
, using Raman spectroscopy.
Indications for surgery Breast-conserving surgery * Localised DCIS (<4 cm extent of malignant microcalcifications
on MMG) Mastectomy (with or without immediate breast reconstruction) * Widespread DCIS ([greater than or equal to] 4 cm extent of malignant microcalcifications
on MMG, or micropapillary) * Persistently involved margins after two attempts at re-excision * Patient preference * Multicentric disease Contraindications to BCS * Previous radiotherapy * Connective tissue disorder * Pregnancy * Non-compliant patient Table II.
The percentage of detection of masses was much higher if only clusters of malignant microcalcifications
>10 mm were considered.
-- is important in diagnostic mammography because it has numerous bilateral microcalcifications without an associated mass, decreasing the ability to recognize malignant microcalcifications