Breast Cancer Found on Repetitive Examination in Mass Screening

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Abstract
Both clinical examination and mammography remain important in repetitive screening. If either modality had been omitted, a substantial number of cancers would have been undetected. Absence of axillary nodal involvement remains substantially higher in the screened group than in the control. In subsequent screening, overall figures for lack of gland involvement have reached 75% as compared to 44% in the control group. On initial examination, the clinician was more successful in the small glandular breast and in the under-50 age group. In subsequent screening, the differences remained but a narrowing of the gap was apparent.