11. Carcinogenesis
11.1 Tumors
Tumors are neoformed tissue masses resulting from excessive cell multiplication, with a tendency to persist and grow steadily.
Synonym: neoplasm, neoplasia.
A tumor can arise from any type of cell in the body that has retained the ability to divide.
The tumor cell escapes the laws of tissue homeostasis (loss of contact inhibition) and exhibits autonomous, indefinite growth.
There are two types of tumors (table 8 ):
benign tumors that evolve slowly and remain localized in the affected organ;
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Carcinogenesis
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Bibliography
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Anses – Nanomaterials
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...Regulations
Regulation (EC) No 1272/2008 of the European Parliament and of the Council of December 16, 2008 on classification, labeling and packaging of substances and mixtures, amending and repealing Directives 67/548/EEC and 1999/45/EC, and amending Regulation (EC) No 1907/2006 (see various amendments).
Arrêté du 7 décembre 2009 (JO du 16 décembre 2009, 3 pages): modification des arrêtés du 20 avril 1994 et...
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