Grouped calcifications

The term grouped calcifications is used in mammography when relatively few breast microcalcifications reside within a small area. At the least, there must be at least five calcifications are present within 1 cm of each other 4. At the most, it may refer to a larger number of calcifications present within 2 cm of each other 4.


An outdated synonym is calcific cluster or clustered calcification. The term 'grouped' is preferred in the latest BI-RADS manual 4.



Homogeneous, smooth clustered microcalcifications can be due to 2:

Pleomorphic clustered microcalcifications can be due to:

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Article information

rID: 15343
System: Breast
Section: Gamuts
Tag: cases, cases
Synonyms or Alternate Spellings:
  • Clustered calcifications
  • Calcific cluster
  • Cluster of calcifications
  • Clustered microcalcifications
  • Grouped microcalcifications

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Cases and figures

    Case 1: DCIS
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