Eggshell calcification (breast)

Last revised by Mostafa Elfeky on 10 Aug 2023

Eggshell calcifications in the breast are benign peripheral rim-like calcifications.

Pathology

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

Radiographic features

  • thin rim-like calcification (<1 mm in thickness)

  • lucent centers

  • small to several centimeters in diameter (oil cyst)

  • may disappear (fat necrosis)

See also

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