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Struma ovarii: MR appearances

Y Yamashita1, Y Hatanaka, M Takahashi

  • 1Department of Radiology, Kumamoto University School of Medicine, 1-1-1 Honjo, Kumamoto 860, Japan.

Abdominal Imaging
|January 1, 1997
PubMed
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Magnetic resonance (MR) imaging of struma ovarii, a rare ovarian neoplasm, reveals complex cystic masses with solid components. These findings, indicating thyroid follicles, are characteristic MR features of this benign tumor.

Area of Science:

  • Gynecologic pathology
  • Radiology
  • Oncology

Background:

  • Struma ovarii is a rare benign ovarian neoplasm.
  • Accurate diagnosis relies on imaging characteristics.

Purpose of the Study:

  • To analyze the magnetic resonance (MR) imaging features of struma ovarii.
  • To identify characteristic MR findings for diagnosis.

Main Methods:

  • Retrospective analysis of MR images (T2-weighted, Gd-DTPA-enhanced T1-weighted) from five patients.
  • Histologically confirmed struma ovarii cases.

Main Results:

  • All cases presented as complex cystic masses with solid components on MR imaging.
  • The solid components indicated the presence of thyroid follicles.

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  • Cyst fluid characteristics varied, with one case showing hemorrhage.

    • Conclusions:

    • Complex cystic masses with solid components are characteristic MR findings of struma ovarii.
    • MR imaging can aid in the diagnosis of this rare ovarian neoplasm.