Borderline Ovarian Serous Tumor A low grade serous epithelial neoplasm arising from the ovary. It is characterized by an atypical proliferation of serous-type epithelial cells without evidence of stromal invasion. It is often asymptomatic but rarely it may present with abdominal pain or abdominal enlargement due to rupture or torsion. Borderline Ovarian Serous Neoplasm Borderline Ovarian Serous Tumor Borderline Serous Neoplasm of Ovary Borderline Serous Neoplasm of the Ovary Borderline Serous Tumor of Ovary Borderline Serous Tumor of the Ovary Ovarian Serous Neoplasm of Low Malignant Potential Ovarian Serous Tumor of Low Malignant Potential Proliferating Ovarian Serous Neoplasm Proliferating Ovarian Serous Tumor Proliferating Serous Neoplasm of Ovary Proliferating Serous Neoplasm of the Ovary Proliferating Serous Tumor of Ovary Proliferating Serous Tumor of the Ovary Serous Neoplasm of Ovary with Low Malignant Potential Serous Neoplasm of the Ovary with Low Malignant Potential Serous Ovarian Neoplasm of Low Malignant Potential Serous Ovarian Tumor of Low Malignant Potential Serous Tumor of Ovary with Low Malignant Potential Serous Tumor of the Ovary with Low Malignant Potential