Meigs’ syndrome is defined as the triad of benign ovarian tumor, pleural effusion and ascites, a rare clinical condition that is treated with tumor resection. Same characteristics may occur in cases of malignant tumors, that add a notable increase in antigen CA-125 serum levels, constituting the pseudo-Meigs syndrome. They have been known for many years, but their pathophysiology remains unclear. We report the case of a pseudo-Meigs syndrome, and a brief bibliography review of the most important characteristics of these syndromes is performed.