Ovarian germ cell tumor ultrasound: Difference between revisions
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Ultrasound | Ultrasound | ||
dysgerminomas<ref name= xab> Ovarian dysgerminoma. http://radiopaedia.org/articles/ovarian-dysgerminoma. URL Accessed on November 11, 2015</ref> | dysgerminomas<ref name= xab> Ovarian dysgerminoma. http://radiopaedia.org/articles/ovarian-dysgerminoma. URL Accessed on November 11, 2015</ref> | ||
* May be seen as a septated ovarian mass with varying echotexture. Colour Doppler interrogation may show prominent flow signal within the fibrovascular septa | * May be seen as a septated ovarian mass with varying echotexture. Colour Doppler interrogation may show prominent flow signal within the fibrovascular septa. | ||
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* mural hyperechoic Rokitansky nodule: dermoid plug | * mural hyperechoic Rokitansky nodule: dermoid plug | ||
* echogenic, shadowing calcific or dental (tooth) components | * echogenic, shadowing calcific or dental (tooth) components | ||
* presence of fluid-fluid levels | * presence of fluid-fluid levels | ||
* multiple thin, echogenic bands caused by hair in the cyst cavity: the dot-dash pattern | * multiple thin, echogenic bands caused by hair in the cyst cavity: the dot-dash pattern | ||
* colour Doppler: no internal vascularity | * colour Doppler: no internal vascularity | ||
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Immature ovarian teratoma<ref name= yyy> Immature ovarian teratoma. http://radiopaedia.org/articles/immature-ovarian-teratoma. URL Accessed on November 11, 2015</ref> | Immature ovarian teratoma<ref name= yyy> Immature ovarian teratoma. http://radiopaedia.org/articles/immature-ovarian-teratoma. URL Accessed on November 11, 2015</ref> | ||
Ultrasound appearance can be as a heterogeneous adnexal mass although is non-specific. Calcifications may be present | Ultrasound appearance can be as a heterogeneous adnexal mass although is non-specific. Calcifications may be present | ||
Ovarian yolk sac tumour<ref name= xxx> Ovarian yolk sac tumour. http://radiopaedia.org/articles/ovarian-yolk-sac-tumour. URL Accessed on November 11, 2015</ref> | Ovarian yolk sac tumour<ref name= xxx> Ovarian yolk sac tumour. http://radiopaedia.org/articles/ovarian-yolk-sac-tumour. URL Accessed on November 11, 2015</ref> | ||
* The tumour typically manifests as a large, complex pelvic mass that extends into the abdomen and contains both solid and cystic components | * The tumour typically manifests as a large, complex pelvic mass that extends into the abdomen and contains both solid and cystic components | ||
* The cystic areas are composed of epithelial lined cysts produced by the tumour or of co-existing mature teratomas | * The cystic areas are composed of epithelial lined cysts produced by the tumour or of co-existing mature teratomas | ||
* Bilaterality is rare. | * Bilaterality is rare. | ||
* Tends to have both echogenic and hypoechoic components. | * Tends to have both echogenic and hypoechoic components. | ||
Revision as of 13:29, 13 November 2015
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Ovarian germ cell tumor Microchapters |
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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]
Ultrasound dysgerminomas[1]
- May be seen as a septated ovarian mass with varying echotexture. Colour 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
- colour 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 tumour[4]
- The tumour typically manifests as a large, complex pelvic mass that extends into the abdomen and contains both solid and cystic components
- The cystic areas are composed of epithelial lined cysts produced by the tumour or of co-existing mature teratomas
- Bilaterality is rare.
- Tends to have both echogenic and hypoechoic components.
Ovarian choriocarcinoma[5] On imaging, choriocarcinomas appear as vascular solid tumours 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