The purpose of this research study is to investigate the possibility that a person's genes
put a person at a higher risk of developing mesothelioma. The investigators will examine
genes from DNA (genetic material) isolated from blood. This study will also examine the
impact of environmental and work exposures and family history of common cancers on the
development of mesothelioma. The genetic markers in this study will basically identify how a
person's body processes frequently encountered environmental pollutants and will not tell
about chromosomes, specific diseases, or other potential health problems.