Call for rethink on aggressive DCIS treatment

Breast cancer specialists are warning that ductal carcinoma in situ (DCIS) is being overtreated and are calling for a major rethink on its management in older women. 

DCIS accounts for about one in five breast cancers detected by screening mammography. 
Women typically undergo lumpectomy or mastectomy and radiotherapy as part of treatment. 

However, a new review of 108,000 women with DCIS shows that their overall risk of dying from breast cancer is low, with a breast cancer-specific mortality of just 3.3% at 20 years.