Fetal Ovarian Cysts and IOTA Terminology for Perinatal Management

Brief summary (registry, in English)

Fetal ovarian cysts are common prenatal findings with a highly variable clinical course, ranging from spontaneous resolution to complications such as torsion, hemorrhage, or rupture requiring surgery. Current prenatal classification is mainly based on the distinction between "simple" and "complex" cysts; however, this approach may be insufficient to accurately predict outcomes and guide perinatal management. This multicenter prospective observational study aims to validate a management model based on the International Ovarian Tumor Analysis (IOTA) terminology for ultrasound characterization of fetal ovarian cysts. Pregnant women carrying a fetus with an ovarian cyst will be enrolled and followed with serial ultrasound examinations during pregnancy and after birth. Cysts will be classified according to morphology and cyst content (anechoic, low-level, ground-glass, hemorrhagic, mixed, and others) and managed according to a predefined protocol based on cyst size and ultrasound features. The primary objective is to assess the rate of complications requiring postnatal surgery in conservatively managed fetal ovarian cysts with anechoic or low-level cystic content smaller than 4 cm. Secondary objectives include evaluation of complication rates in larger cysts managed with aspiration procedures, rates of spontaneous cyst resolution, rates of ovarian torsion, and the presence of normal ovarian parenchyma at histology in surgically treated cases. The study aims to improve prenatal risk stratification and optimize perinatal management in order to reduce unnecessary surgery and preserve ovarian function.

What you commit to

• Study type: Observational
• Planned participants: 100
• From 11 Oct 2026 to the primary completion date, 31 Dec 2026
• 1 site in 1 country
• Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Who the study is looking for

Age in the registry: 18 years to - · Sex: Female

Full criteria on ClinicalTrials.gov

Sites (1)

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