Synchronous breast cancer

Dr Henry Knipe and Radswiki et al.

Synchronous breast cancers are two breast cancers that occur in either breast at the same time. 

Up to 10% of all breast cancers may be synchronous (particularly found with the use of breast MRI). The occurrence of bilaterality is greatest with invasive lobular carcinoma.

Breast MRI

With MRI screening, there may be a 4-10% rate of contralateral breast cancers when a unilateral breast cancer is found 1.

The survival of women with synchronous breast cancers is worse than those with unilateral disease 3.

Considerations include:

Breast imaging and pathology
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Article information

rID: 14880
System: Breast
Section: Pathology
Tag: cases
Synonyms or Alternate Spellings:
  • Synchronous breast cancers
  • Synchronous breast malignancy
  • Synchronous breast carcinoma
  • Contralateral breast cancers
  • Contralateral breast cancer
  • Bilateral breast cancers
  • Bilateral breast cancer

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