Sonographic and Pathologic Features of Struma Ovarii

Area of Science:

• Gynecologic Pathology
• Diagnostic Imaging
• Ovarian Neoplasms

Background:

• Struma ovarii is a rare germ cell tumor of the ovary, predominantly composed of mature thyroid tissue.
• Accurate preoperative diagnosis is crucial for appropriate management.

Purpose of the Study:

• To investigate the sonographic features of struma ovarii.
• To correlate these sonographic findings with histopathologic diagnoses.

Main Methods:

• Retrospective review of 72 patients with histopathologically confirmed struma ovarii.
• Analysis of sonographic and color Doppler flow imaging features.

Main Results:

• 71 benign and 1 malignant struma ovarii cases were analyzed.
• Benign lesions commonly presented as multilocular cystic or cystic-solid masses with distinct margins and irregular shapes.
• Nodular solid protrusions within cystic areas and visible blood flow signals were observed in a significant proportion of cases.

Conclusions:

• Sonographic features of struma ovarii are diverse.
• A multilocular cystic or cystic-solid mass with distinct margins, nodular protrusions, and visible blood flow suggests struma ovarii.