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Variable MR findings in ovarian functional hemorrhagic cysts
Hassan N Kanso1, Kamal Hachem, Noël J Aoun
1Department of Radiology, Hôtel Dieu de France, Beirut, Lebanon.
Journal of Magnetic Resonance Imaging : JMRI
|June 23, 2006
Summary
Magnetic resonance (MR) imaging reveals characteristic findings in ovarian functional hemorrhagic cysts (FHC). Most FHC show low signal intensity on T1-weighted images, with some also appearing bright on T2-weighted images.
Area of Science:
- Radiology
- Gynecologic Imaging
- Oncology
Background:
- Ovarian functional hemorrhagic cysts (FHC) are common gynecologic conditions.
- Accurate characterization of FHC is crucial for appropriate clinical management.
- Magnetic resonance (MR) imaging offers detailed anatomical and tissue characterization of ovarian lesions.
Purpose of the Study:
- To describe the magnetic resonance (MR) imaging findings in ovarian functional hemorrhagic cysts (FHC).
- To correlate MR imaging features with ultrasound (US) findings and histopathological confirmation.
Main Methods:
- Retrospective analysis of 22 FHC in 21 patients who underwent both US and MR examinations.
- MR imaging included T2-weighted fast spin echo (FSE), T1-weighted spin echo (SE), and T1-weighted SE fat-suppressed sequences.
- Study focused on cysts with an obvious echogenic pattern on US.
Main Results:
- 64% of FHC appeared hypointense on T1-weighted images.
- 18% of FHC were hyperintense on T2-weighted images.
- Only 36% of FHC demonstrated intermediate or high signal intensity on T1-weighted images.
Conclusions:
- MR imaging findings in FHC can be variable, with a majority showing hypointensity on T1-weighted images.
- Understanding these MR characteristics aids in differentiating FHC from other ovarian pathologies.
- Correlation with US findings is important for comprehensive evaluation.
