Multiple primary cancers associated with endometrial and ovarian cancers: An analysis based upon the Japan Autopsy Annual Database from 2002 to 2010.

Both endogenous and exogenous factors are associated with the incidence of MPC. Results of our present study based on Japanese Autopsy Base first demonstrated that female hormones had a strong influence on the incidence of MPC. This study also demonstrated that the analysis of MPC using an autopsy database could have advantages over clinical database analysis.