Tumor-Definition
Definition
The word "tumor" is a generic term corresponding to the development of a newly formed tissue within a normal tissue. It is caused by the dysfunction of cell development.
Tumor cells
Contrary to the ideas received, the term "tumor" is used not only for cancer pathologies, but also for other products of a benign nature. Benignity (non-cancerous nature) or malignancy (cancer) can be evoked according to the aspect found on the imaging tests performed, but will often be confirmed by the completion of a biopsy, i.e. a sample that will allow its Study.
Cancer tumor
In the case of a cancerous tumor, one speaks of a primary tumor when it is born at the very level of an organ, or a secondary tumor when the abnormal development arises from the migration through the circulation of tumor cells. The number of new cases of cancers in 2012 in France is about 355 000 and the number of deaths caused by cancer is 148 000. (INCA).
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