Meigs Syndrome: Causes, Diagnosis and Treatment Options

Written by Medicover Team and Medically Reviewed by Dr Kovvuru Bhaskar Reddy , Oncologists

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1. Causes 2. Find a Doctor 3. Diagnosis 4. Treatment 5. FAQs

Meigs syndrome is a rare medical condition characterized by the presence of a benign ovarian tumor, most commonly an ovarian fibroma, along with ascites (fluid accumulation in the abdomen) and pleural effusion (fluid around the lungs). Although the tumor itself is noncancerous, the symptoms can closely resemble ovarian cancer. The condition is usually resolved after surgical removal of the ovarian tumor, making early diagnosis and appropriate treatment important.

Because Meigs syndrome is uncommon, prompt medical evaluation is recommended for individuals who experience persistent abdominal swelling, pelvic pain, or breathing difficulties. Early diagnosis helps rule out malignant conditions and ensures timely management.

What are the Types of Meigs Syndrome?

Meigs syndrome includes different benign ovarian tumors associated with ascites and pleural effusion. These include:

Classic Meigs Syndrome: Involves an ovarian fibroma with ascites and pleural effusion.
Ovarian Thecoma: A benign ovarian thecoma associated with ascites and pleural effusion.
Granulosa Cell Tumor: A benign granulosa cell tumor accompanied by ascites and pleural effusion.
Pseudo-Meigs Syndrome: Similar symptoms caused by other pelvic tumors, such as uterine fibroids or metastatic tumors, rather than an ovarian fibroma.
Resolution After Surgery: A distinguishing feature of Meigs syndrome is that the ascites and pleural effusion resolve after removal of the tumor.

What are the Symptoms of Meigs Syndrome?

Meigs syndrome commonly presents with abdominal swelling due to ascites, pleural effusion causing breathing difficulties, and a pelvic mass. Because these symptoms can resemble ovarian cancer, medical evaluation is essential for an accurate diagnosis.

Abdominal swelling caused by fluid accumulation (ascites).
Pleural effusion, leading to shortness of breath or chest discomfort.
Presence of a benign ovarian fibroma or other ovarian tumor.
Pelvic pain, pressure, or discomfort.
Feeling of fullness or abdominal bloating.

What are the Causes of Meigs Syndrome?

Meigs syndrome is a rare condition characterized by the combination of a benign ovarian tumor, ascites, and pleural effusion. Although the exact cause is not completely understood, it is believed that the ovarian tumor contributes to fluid accumulation in the abdomen and around the lungs. The fluid may develop due to irritation of the lining of the abdominal cavity, increased fluid production by the tumor, or impaired lymphatic drainage. Once the benign ovarian tumor is surgically removed, the ascites and pleural effusion usually resolve completely.

Ovarian Fibroma: The most common cause of Meigs syndrome is a benign ovarian fibroma.
Ovarian Thecoma: A benign ovarian thecoma may also lead to Meigs syndrome with fluid accumulation in the abdomen and chest.
Granulosa Cell Tumors: Certain benign granulosa cell tumors can produce symptoms similar to Meigs syndrome.
Brenner Tumors: Rare benign Brenner tumors of the ovary have also been associated with Meigs syndrome.

When to see a Doctor for Meigs Syndrome?

If you experience persistent abdominal swelling, pelvic pain, shortness of breath, unexplained weight gain, or a pelvic mass, consult an Oncologist for a comprehensive evaluation. Although Meigs syndrome is associated with benign ovarian tumors, its symptoms can resemble ovarian cancer, making early diagnosis essential. Seek immediate medical attention if you develop severe breathing difficulty, intense abdominal pain, or rapidly increasing abdominal swelling.

Persistent abdominal swelling or bloating.
Pelvic pain or a feeling of pressure in the lower abdomen.
Shortness of breath or chest discomfort due to pleural effusion.
Unexplained weight gain caused by fluid accumulation (ascites).
A noticeable pelvic or abdominal mass.
Persistent fatigue or reduced ability to perform daily activities.
Loss of appetite or feeling full quickly after eating.
Recurrent fluid buildup in the abdomen or around the lungs.
Abnormal imaging findings suggesting an ovarian mass.
Severe abdominal pain, sudden worsening of breathing, chest pain, or rapid abdominal enlargement requiring emergency medical care.

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How is Meigs Syndrome Diagnosed?

Diagnosing Meigs syndrome involves a combination of clinical evaluation, imaging studies, laboratory tests, and fluid analysis. Since the condition can closely resemble ovarian cancer, a thorough diagnostic assessment is essential to confirm the presence of a benign ovarian tumor associated with ascites and pleural effusion.

Physical Examination: A healthcare provider evaluates symptoms such as abdominal swelling, pelvic mass, and breathing difficulties.
Imaging Tests: Ultrasound, CT scan, or MRI helps visualize the ovarian tumor and assess fluid accumulation in the abdomen and chest.
Blood Tests: Blood tests, including tumor markers such as CA-125, may be performed to help differentiate Meigs syndrome from ovarian malignancy.
Thoracentesis or Paracentesis: Fluid from the chest (pleural effusion) or abdomen (ascites) may be collected and analyzed to rule out infection or cancer.

An accurate diagnosis helps distinguish Meigs syndrome from malignant ovarian conditions and guides appropriate treatment.

What are the Treatment Options for Meigs Syndrome?

The primary treatment for Meigs syndrome is surgical removal of the benign ovarian tumor. Once the tumor is removed, the ascites and pleural effusion usually resolve without additional treatment. The treatment approach depends on the patient's overall health and the characteristics of the ovarian mass.

Surgical Removal: Surgery to remove the ovarian fibroma or other benign tumor is the standard and most effective treatment.
Fluid Drainage: Thoracentesis or paracentesis may be performed to relieve symptoms caused by pleural effusion or ascites before surgery.
Supportive Medications: Diuretics and pain-relieving medications may be prescribed to reduce fluid buildup and improve comfort when appropriate.
Cancer Treatment (If Needed): Chemotherapy or radiation therapy may be considered only if further evaluation reveals a malignant ovarian tumor rather than true Meigs syndrome.
Follow-Up Care: Regular follow-up appointments and imaging studies help ensure complete recovery and monitor for recurrence.

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What are the Risk Factors for Meigs Syndrome?

Although the exact cause of Meigs syndrome remains unknown, several factors are associated with an increased likelihood of developing the condition. Early recognition of these risk factors can help with timely diagnosis and treatment.