Ovarian seromucinous tumor: A case series of WHO newly introduced entity

Introduction: Ovarian epithelial tumors account for the majority of female ovarian neoplasms but seromucinous tumors are rare and not adequately described in the literature. The recent World Health Organization (WHO) 2014 classification of tumors of female reproductive organs introduced this new category of ovarian neoplasm as “seromucinous tumors. Materials and Method: Sectioning of tissue followed by staining and immunohistochemistry. Results: Four of our cases which were diagnosed as cystic lesion clinically and radiologically , on histopathological examination two of them reported as seromucinous cystadenoma and rest two as seromucinous borderline tumors (SMBT). One of the case of SMBT also showed microinvasion along with focal areas of intraepithelial carcinoma high grade and clear cell component. Conclusion: Proper histopathological diagnosis is very important for better treatment and to reduce the use of aggressive therapies.