Ovarian mesothelial tumors and herbicides: a case-control study.

The ovarian cancer risk from herbicide exposure has been studied in a hospital-based, case-control study after some of these compounds have been shown to be carcinogenic for animals. This study includes 60 cases of primary mesothelial ovarian tumors and 127 controls with non-ovarian malignancies drawn from the same file and matched by year of diagnosis, age and residence. A positive association (relative risk 4.38) has been found between herbicide exposure and ovarian mesotheliomas.