Ovarian germ cell tumor ultrasound: Difference between revisions
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* 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 | '''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> | ||
* The tumor typically manifests as a large, complex pelvic mass that extends into the abdomen and contains both solid and cystic components | * The tumor 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 tumor or of co-existing mature teratomas | * The cystic areas are composed of epithelial lined cysts produced by the tumor or of co-existing mature teratomas | ||
Revision as of 20:24, 17 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]
- The tumor 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 tumor 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 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