Surgical Treatment & Preventing Overtreatment

Because a suspected cystadenofibroma often looks concerning on imaging, surgery is frequently recommended to relieve symptoms, prevent torsion, and provide a definitive tissue diagnosis ^[1][2]. Because this tumor is ultimately benign, the surgical goal is often to remove the mass while preserving as much healthy tissue as safely possible.

Surgical Approaches: Cystectomy vs. Oophorectomy

The choice of surgery depends on your age, fertility goals, menopausal status, and the size and complexity of the tumor.

• Ovarian-Sparing Surgery (Cystectomy): In this procedure, the surgeon carefully peels the tumor away from the healthy part of the ovary ^[3]. This is often considered for younger patients wanting to preserve fertility or ovarian hormones. However, it carries risks of cyst rupture, and the surgery itself can sometimes reduce ovarian reserve.
• Oophorectomy (Removal of the Ovary): If the tumor is extremely large, lacks a safe “cleavage plane” to separate it from the ovary, if the ovary has been severely damaged by torsion, or if there is high concern for cancer, the surgeon may need to remove the entire ovary and fallopian tube ^[4][3].

Note on Consent: Even if a cystectomy is planned, you will likely be asked to consent to an oophorectomy just in case the surgeon finds during the operation that the ovary cannot be safely saved.

The Role of “Frozen Sections”

One of the most important tools used during surgery for a suspicious mass is the intraoperative frozen section. While you are still under anesthesia, the surgeon sends a piece of the tumor to a pathologist, who quickly freezes it, slices it, and looks at it under a microscope ^[1][5].

The frozen section acts as a “real-time” check to help guide the surgical team:

• If it looks benign: The surgeon can often stop after removing the mass or the single ovary, avoiding unnecessary radical steps (overtreatment) ^[1][6].
• If it looks malignant: Depending on your preoperative consent, the surgeon may need to perform a more extensive operation, such as removing the other ovary, the uterus, or nearby lymph nodes (surgical staging) ^[5][6].

If your imaging is highly suspicious, you should discuss with your doctor whether a gynecologic oncologist (a cancer surgeon) should perform or be on standby for your surgery.

Understanding the Limits

While highly valuable, frozen sections are not perfect. They are a limited sample and have known limitations:

• Sampling Error: Because the pathologist only looks at a few small pieces during surgery, they might miss a tiny area of borderline or cancerous cells hiding in a large or complex tumor ^[7][8].
• Reliability: Frozen sections are generally less reliable for very large tumors, mucinous subtypes, or borderline lesions ^[7][9].
• Upgrade Risk: In general ovarian surgery, a portion of tumors that look “borderline” or benign on a frozen section are found to be invasive cancer once the full, permanent pathology report is completed days later ^[5].

The final word always comes from the permanent pathology report. In some cases, if the final report finds something more serious than the frozen section did, a second surgery may be necessary ^[5].

Surgical Risks to Discuss

Before any surgery, ensure you understand the standard risks, which include bleeding, infection, scar tissue (adhesions), and injury to nearby organs like the bladder or bowel. Additionally, if your surgery begins as a minimally invasive laparoscopy (using small incisions and a camera), there is always a chance it may need to be converted to an open laparotomy (a larger abdominal incision) if the tumor is too large or complex to remove safely through small incisions.