The ovarian adenocarcinoma is an aggressive cancer which has the highest mortality rate of all the gynecological cancers. More than 1/3 of the patients requests medical attention for ascites and pleural effusions. The association of the triad ovarian tumor, ascites and pleural effusions raises diagnostic issues and may lead to delay of adequate treatment. We present the case of a 56 years old female patient, initially diagnosed with bilateral mammary adenocarcinoma, who was treated with chemo-and radiotherapy. Subsequently she developed another adenocarcinoma -this time with ovarian localization. The particularity of this case consists of the risk factors that contributed to the appearance of the ovarian adenocarcinoma with serous effusions, represented by the family and personal history of the patient.