ESTUDIO DIAGNÓSTICO Y MANEJO DE PACIENTES DE ALTO RIESGO

Breast cancer is a multifactorial disease in which a number of factors interact, namely hormonal, metabolic, genetic and environmental. The mayority of breast cancers are defined as sporadic, which means they are present in women with no family history of the disease. A small number, which represents about 15% are defined as Familial cancers in which more than one family member has cancer. About 5-10% are considered to be due to the presence of constitutive DNA variations which confer an elevated risk for the development of cancer in the general population and these are called hereditary cancers. This data is foreign; in Chile, we do not have a cancer registry so for now we can only extrapolate these numbers.