[SELECTED ETHICAL ISSUES IN ONCOGENETICS]

Oncogenetics is the medical care of families with hereditary cancer risk. Bioethics laws strictly control this activity. Taking into account the medical benefit and lives saved through oncogenetics when a constitutional mutation in hereditary cancer risk gene is found, the law requires that information is disseminated to the relatives. If the consultant cannot or will not provide this information, this is the geneticist who will contact the family. This is an unprecedented situation where the doctor encourages medical advices not requested by patients. The Clermont experience is shown on the application of the law and its practical difficulties. Currently the technology of molecular genetic diagnosis is changing rapidly and allows new diagnostics whether at the level of cancerous tumors or in the genome with the perspective that everyone can soon have the sequence of the entire genome with the interpretation of personal risk of cancer diseases or other kinds. It is necessary to better anticipate emerging ethical issues already raised by the first medical practices of these technologies.