microcalcification


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microcalcification

(mī′krō-kăl′sə-fĭ-kā′shən)
n.
A tiny, nonpalpable deposit of calcium in breast tissue that is visible on a mammogram, can be scattered or clustered, and can indicate either cancer or benign tissue changes.

microcalcification

Imaging An aggregate of precipitated calcium salts, which by LM appears as purplish crystalline debris; MCs usually lack clinical significance, and occur in various tissues–eg, blood vessel walls in ASHD, or in necrosis; MCs appear on mammography as scattered or aggregated white dots, and are a 'soft' diagnostic criterion suggestive of breast CA

microcalcification

(mī″krō-kăl-sĭ-fĭ-kā′shŭn)
A minute deposit of calcium in breast tissue that can be detected with a mammogram but not felt on physical examination. A grouping of microcalcifications suggests that cancer may be present in the organ.
References in periodicals archive ?
It also fails to accurately comment on the representative nature of microcalcification specimens in particular, for which specimen radiography is mandatory.
There was no discrete mass nor suspicious microcalcifications or axillary adenopathy.
One of the important early symptoms of breast cancer in the mammograms is the appearance of microcalcification clusters, which have a higher X-ray attenuation than the normal breast tissue and appear as a group of small localized granular bright spots in the mammograms.
In the majority of cases, microcalcification turns out to be harmless but in a small number of patients, it can be an early sign of breast cancer.
Pb group: The photograph indicates a slight tubular necrosis and tubular microcalcification (beginning of lithiasis).
Use of microcalcification descriptors in BI-RADS 4th edition to stratify risk of malignancy.
Study findings revealed that CAD technology effectively identified 98% of the microcalcifications, 95% of the invasive lobular carcinomas, 89% of the mixed mass/microcalcification lesions and 84% of the masses in 273 women with confirmed breast cancer.
20,21) However, this finding has a low sensitivity (29% to 59%), since microcalcification is often not present in malignant nodules.
The standard screening mode resolution of 50 microns is the highest screening resolution on the market, while the ultra-high resolution diagnostic mode of 25 microns demonstrates superior detail for suspicious lesion and microcalcification characterization.
A third patient was referred to Scallion with a mammogram result revealing a microcalcification.
Examination of breast needle core biopsy specimens performed for screen-detected microcalcification.
They include radiographically lucent oil or lipid cysts, circumscribed water density masses, areas of increased density, pleomorphic clustered microcalcification, and suspicious spiculated masses.