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 ?
Micronodules need to be evaluated by cytology only in the event of suspicious finding at US (Solid hypoechoic with microcalcifications) or personal history.
In addition, the diagnostic accuracy of ultrasound was high in the case of palpable masses; however, mammography is the best technique for screening and identifying patients with non-mass-like breast lesions and microcalcifications. Ultrasound is not a perfect screening technique considering the false positive and false-negative results.
Usefulness of MRI of microcalcification lesions to determine the indication for stereotactic mammotome biopsy.
As for female patients, age (<45y/[greater than or equal to]45y), tumor size (P <0.001), multifocality (P = 0.05), and the presence of microcalcifications on US (P <0.001) were significantly associated with CLNM (P <0.001) (Table 4).
Microcalcification is deposition calcium in the soft breast tissues.
Zwiggelaar, "Topological modeling and classification of mammographic microcalcification clusters," IEEE Tractions on Bio-Medical Engineering, vol.
Clustered microcalcification on mammogram-its value in the diagnosis of breast cancer.
The histological profile of this study indicates that rats exposed to Pb presents a minimal tubular necrosis and tubular microcalcification, perhaps it is the beginning of nephrolithiasis, which is a disease characterized by the presence of stones in the excretory channel of kidneys.
Weinbaum, "Revised microcalcification hypothesis for fibrous cap rupture in human coronary arteries," Proceedings of the National Academy of Sciences of the United States of America, vol.
It also fails to accurately comment on the representative nature of microcalcification specimens in particular, for which specimen radiography is mandatory.
There were six nodules, the largest size 20x12 mm in diameter with microcalcification. There was a hypoechoic solid lesion measuring 14 x 9 mm in size compatible with a parathyroid adenoma on the left side.