Ovarian germ cell tumor ultrasound: Difference between revisions
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'''Ovarian dermoid'''<ref name= abc> Mature (cystic) ovarian teratoma. http://radiopaedia.org/articles/mature-cystic-ovarian-teratoma. URL Accessed on November 11, 2015</ref> | '''Ovarian dermoid'''<ref name= abc> Mature (cystic) ovarian teratoma. http://radiopaedia.org/articles/mature-cystic-ovarian-teratoma. URL Accessed on November 11, 2015</ref> | ||
* [[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 | ||
* 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 | ||
* Color Doppler: no internal [[vascularity]] | :* Color Doppler: no internal [[vascularity]] | ||
* Internal vascularity requires further workup to exclude a [[malignant]] lesion | :* Internal vascularity requires further workup to exclude a [[malignant]] lesion | ||
'''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> | ||
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'''Ovarian yolk sac tumor'''<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 tumor'''<ref name= xxx> Ovarian yolk sac tumour. http://radiopaedia.org/articles/ovarian-yolk-sac-tumour. URL Accessed on November 11, 2015</ref> | ||
* Tends to have both echogenic and hypoechoic components. | * Tends to have both echogenic and hypoechoic components. | ||
==References== | ==References== | ||
Revision as of 21:43, 19 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
It is difficult to distinguish ovarian germ cell tumors on ultrasound alone. Both solid and cystic lesions with calcification may be present. Dysgerminoma often appears as a hypoechoic mass while other ovarian germ cell tumors often have variable echogenicity. Ovarian teratoma may be further characterized by the presence of sebaceous and hair components arising from the Rokitansky protuberance.[1][2][3][4]
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[4]
- Ultrasound appearance can be as a heterogeneous adnexal mass although is non-specific. Calcifications may be present
Ovarian yolk sac tumor[3]
- Tends to have both echogenic and hypoechoic components.
References
- ↑ 1.0 1.1 Ovarian dysgerminoma. http://radiopaedia.org/articles/ovarian-dysgerminoma. URL Accessed on November 11, 2015
- ↑ 2.0 2.1 Mature (cystic) ovarian teratoma. http://radiopaedia.org/articles/mature-cystic-ovarian-teratoma. URL Accessed on November 11, 2015
- ↑ 3.0 3.1 Ovarian yolk sac tumour. http://radiopaedia.org/articles/ovarian-yolk-sac-tumour. URL Accessed on November 11, 2015
- ↑ 4.0 4.1 Immature ovarian teratoma. http://radiopaedia.org/articles/immature-ovarian-teratoma. URL Accessed on November 11, 2015