Le diagnostic du cancer du sein repose aujourd’hui sur des techniques de plus en plus fines et fiables. Parmi elles, l’immunohistochimie (IHC) occupe une place centrale. Cette méthode permet d’analyser le comportement biologique d’une tumeur et d’en déterminer les caractéristiques essentielles pour orienter le traitement.

Breast cancer is a malignant tumour that develops in the breast and can spread to other parts of the body.
Other names for breast cancer include breast carcinoma, mammary carcinoma, or cancer, or the scientific
name of the specific cancer, for example, duct carcinoma.

Hereditary breast and ovarian cancer syndrome is a type of familial cancer, and is linked to mutations in
two genes called BRCA1 and BRCA2. BRCA1 and BRCA2 are known as tumour suppressor genes – they
prevent cells from growing too rapidly or in an uncontrolled way. Thousands of mutations have been
found in these genes, but only some have been linked to an increased risk of cancer.