title: [Genetics and human cancers: methods of study (author's transl)].
abstract: The role of hereditary factors in the etiology of cancer is difficult to prove. However, one may precise a hereditary relationship in those cancers which are either transmitted as a monofactorial trait, or secondary to a hereditary disease, or linked to a genetic marker. Most often, it is necessary to fall back on familial investigations, which may sometimes indicate an excess of familial cases. However, a familial concentration of certain cancers may also be due to hereditary factors, as well as to a common environment.
mesh_terms: D002869:Chromosome Aberrations; D004200:Diseases in Twins; D005006:Ethnicity; D006801:Humans; D009369:Neoplasms / Q000209:etiology / Q000235:genetics*; D009506:Nevus / Q000235:genetics; D012175:Retinoblastoma / Q000235:genetics
vernacular_title: Génétique et cancers humains: méthodologie d'étude.