<prompt> false regarding neoplasms of the ovary are:Stromal invasion is commonly present in ovarian tumours of borderline malignancyLymphocytic infiltration is characteristic to dysgerminomaPresence of ascites and pleural effusion in Brenner tumour indicates poor prognosisEndometrioid carcinoma of the ovary may coexist with endometrial adenocarcinoma  <response>: Borderline ovarian tumours grade 0 tumors may demonstrate papillary tufting,stratification,epithelial atypia,exfoliation of cellular clusters,minimal mitotic activity No stromal invasion Patients have a high survival rate. runs a typical indolent course spontaneous regression of peritonial implants multiple sections examined to exclude invasion SHAW;S TEXTBOOK OF GYNECOLOGY,Pg no:373,374,15th edition 