Mammograms tied to overdiagnosis of breast cancer

(Reuters Health) – Widespread breast cancer screening may catch more small, slow-growing tumors that are unlikely to be fatal without curbing the diagnosis of advanced cancer cases, a Danish study suggests. Diagnosis rates for early-stage tumors and pre-invasive malignancies known as ductal carcinoma in situ (DCIS) have surged in recent years as more women get screening mammograms. The current study offers fresh evidence linking routine screening to over-diagnosis of non-aggressive tumors because it compares outcomes over a single time period in two regions of Denmark – one that offered biennial mammography for women aged 50 to 69 and one that…
View More/Source Article