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Ovarian teratomas appearing as solid masses on ultrasonography
1Department of Radiology, College of Medicine, Seoul National University, Republic of Korea.
Summary
Ultrasonography can identify atypical solid-appearing ovarian teratomas. Peripheral hypoechogenicity is a key imaging feature suggesting a fluid component in these ovarian tumors.
Area of Science:
- Medical Imaging
- Gynecologic Oncology
- Pathology
Background:
- Ovarian teratomas are common germ cell tumors.
- Solid-appearing masses on ultrasonography can pose diagnostic challenges.
- Differentiating benign from malignant ovarian masses is crucial.
Purpose of the Study:
- To determine the prevalence and ultrasonographic features of solid-appearing ovarian teratomas.
- To correlate imaging findings with pathologic results.
- To identify characteristic ultrasonographic signs of these tumors.
Main Methods:
- Retrospective review of 202 ovarian teratoma ultrasonographic images.
- Selection and analysis of solid-appearing masses.
- Evaluation of echotexture, peripheral hypoechogenicity, posterior sonic attenuation, and calcification.
Main Results:
- 37.6% of ovarian teratomas presented as atypical solid-appearing masses.
- Peripheral hypoechogenicity was observed in 75% of these masses.
- Posterior sonic attenuation was present in 23.7% of cases.
Conclusions:
- Peripheral hypoechogenicity is a potential characteristic finding for solid-appearing ovarian teratomas.
- This feature may indicate the presence of a cystic or fluid component within the tumor.
- Ultrasonography can aid in the diagnosis of ovarian teratomas with solid components.