Serous borderline tumour of the peritoneum- A rare entity

Serous borderline tumor is a rare entity of peritoneum which can lead to diagnostic dilemma due to its resemblance with reactive lesions of peritoneum and ovarian borderline and malignant neoplasms. Complete clinical details, histopathological evaluation and immunohistochemistry aid in arriving at correct diagnosis. Recognizing this entity is important as it carries good prognosis. Keywords: Mesothelial hyperplasia, Primary peritoneal carcinoma, Serous borderline tumor.