Differentiation Between Benign and Malignant Ovarian Tumors

Sep 05, 2021 Source: Cainiu Health
Dr. Yan Ying
Introduction
Ovarian cysts are classified into two types: benign and malignant. The differentiation between benign and malignant ovarian tumors relies on ultrasound examination, tumor marker testing, and tissue biopsy. If the tumor is smaller than 5 cm in diameter and does not cause compression of surrounding tissues, it is generally considered benign. Conversely, a larger tumor that exerts compressive symptoms on adjacent structures suggests malignancy.

Ovarian tumors are a complex gynecological condition that adversely affects the ovarian health of many women. During the active phase of the disease, patients often experience menstrual cycle disturbances and abdominal pain, significantly disrupting their daily lives. So how can one differentiate between benign and malignant ovarian tumors? Below is an explanation.

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Differentiating Benign from Malignant Ovarian Tumors

Ovarian cysts fall into two categories: benign and malignant. Differentiation between benign and malignant ovarian tumors relies on ultrasound examination, tumor marker testing, and histopathological biopsy. If the tumor measures less than 5 cm in diameter and shows no evidence of surrounding tissue compression, it is most likely benign. Conversely, larger tumors causing compressive symptoms on adjacent tissues are more suggestive of malignancy. Typically, benign tumors occur more frequently in women who have completed childbearing and are otherwise in good health, whereas malignant tumors are more commonly seen in adolescents or postmenopausal women—and tend to progress rapidly.

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Additional Information: Clinical Manifestations of Ovarian Tumors

1. Abdominal Mass

Most ovarian tumors are asymptomatic initially, with the primary clinical sign being an abdominal mass. This mass typically enlarges gradually and uniformly, often without associated pain or fever. It is frequently discovered incidentally during routine physical examinations. In some cases—particularly with dermoid cysts—the mass may undergo torsion due to physical activity or changes in body position, compromising blood supply and leading to tissue necrosis. This results in severe pain, followed by secondary fever and infection, prompting emergency presentation.

2. Severe Abdominal Pain

Rupture of an ovarian tumor can produce prominent symptoms. For example, corpus luteum cysts—due to impaired coagulation or external trauma—may rupture, causing intense abdominal pain and potentially life-threatening hemorrhage. Additionally, even without rupture, some patients may experience sharp, stabbing abdominal pain triggered by tumor-related irritation.

The above outlines key considerations for distinguishing benign from malignant ovarian tumors. We hope this information proves helpful to you.