Eggshell calcification (breast)

Eggshell calcifications in the breast are benign peripheral rim like calcifications


They are typically secondary to fat necrosis or calcification of oil cysts.

Radiographic features

  • thin rim-like calcification (<1 mm in thickness)
  • lucent centres
  • small to several centimetres in diameter (oil cyst)
  • may disappear (fat necrosis)

See also

Breast imaging and pathology
Inspired signs
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Article information

rID: 25779
System: Breast
Section: Signs
Synonyms or Alternate Spellings:
  • Egg shell / rim calcification within breast
  • Egg shell calcification within breast
  • Eggshell calcification within the breast
  • Egg shell calcification - breast
  • Eggshell calcification - breast
  • Egg shell / rim calcification within the breast

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