Ovarian germ cell tumor ultrasound: Difference between revisions
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* [[Ultrasound]] is the preferred imaging modality. Typically an ovarian dermoid is seen as a [[cystic]] adnexal mass with some mural components. Most lesions are unilocular. | * [[Ultrasound]] is the preferred imaging modality. Typically an ovarian dermoid is seen as a [[cystic]] adnexal mass with some mural components. Most lesions are unilocular. | ||
* The spectrum of sonographic features includes: | * The spectrum of sonographic features includes: | ||
* Diffusely or partially echogenic mass with posterior sound attenuation owing to [[sebaceous]] material and [[ hair]] within the cyst cavity | * Diffusely or partially [[echogenic]] mass with posterior sound attenuation owing to [[sebaceous]] material and [[ hair]] within the cyst cavity | ||
* Echogenic interface at the edge of mass that obscures deep structures: the tip of the iceberg sign | * Echogenic interface at the edge of mass that obscures deep structures: the tip of the iceberg sign | ||
* Mural hyperechoic Rokitansky nodule: [[dermoid]] plug | * Mural hyperechoic Rokitansky nodule: [[dermoid]] plug | ||
Revision as of 17:07, 18 November 2015
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Ovarian germ cell tumor Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Ovarian germ cell tumor ultrasound On the Web |
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American Roentgen Ray Society Images of Ovarian germ cell tumor ultrasound |
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Risk calculators and risk factors for Ovarian germ cell tumor ultrasound |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Monalisa Dmello, M.B,B.S., M.D. [2]
Overview
Ultrasound
Dysgerminomas[1]
- They may be seen as a septated ovarian mass with varying echotexture
- Color Doppler interrogation may show prominent flow signal within the fibrovascular septa
Ovarian dermoid[2]
- Ultrasound is the preferred imaging modality. Typically an ovarian dermoid is seen as a cystic adnexal mass with some mural components. Most lesions are unilocular.
- The spectrum of sonographic features includes:
- Diffusely or partially echogenic mass with posterior sound attenuation owing to sebaceous material and hair within the cyst cavity
- Echogenic interface at the edge of mass that obscures deep structures: the tip of the iceberg sign
- Mural hyperechoic Rokitansky nodule: dermoid plug
- Echogenic, shadowing calcific or dental (tooth) components
- Presence of fluid-fluid levels
- Multiple thin, echogenic bands caused by hair in the cyst cavity: the dot-dash pattern
- Color Doppler: no internal vascularity
- Internal vascularity requires further workup to exclude a malignant lesion
Immature ovarian teratoma[3]
- Ultrasound appearance can be as a heterogeneous adnexal mass although is non-specific. Calcifications may be present
Ovarian yolk sac tumor[4]
- Tends to have both echogenic and hypoechoic components.
Ovarian choriocarcinoma[5]
- On imaging, choriocarcinomas appear as vascular solid tumors with cystic, haemorrhagic, and necrotic areas.
References
- ↑ Ovarian dysgerminoma. http://radiopaedia.org/articles/ovarian-dysgerminoma. URL Accessed on November 11, 2015
- ↑ Mature (cystic) ovarian teratoma. http://radiopaedia.org/articles/mature-cystic-ovarian-teratoma. URL Accessed on November 11, 2015
- ↑ Immature ovarian teratoma. http://radiopaedia.org/articles/immature-ovarian-teratoma. URL Accessed on November 11, 2015
- ↑ Ovarian yolk sac tumour. http://radiopaedia.org/articles/ovarian-yolk-sac-tumour. URL Accessed on November 11, 2015
- ↑ Ovarian choriocarcinoma. http://radiopaedia.org/articles/ovarian-choriocarcinoma. URL Accessed on November 11, 2015