Ovarian germ cell tumor ultrasound: Difference between revisions
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* Color Doppler interrogation may show prominent flow signal within the fibrovascular septa | * Color Doppler interrogation may show prominent flow signal within the fibrovascular septa | ||
'''Ovarian | '''Ovarian teratoma''' | ||
* [[Ultrasound]] | *[[Ultrasound]] is the most frequently used modality for the diagnosis.<ref name="SabaGuerriero2009">{{cite journal|last1=Saba|first1=Luca|last2=Guerriero|first2=Stefano|last3=Sulcis|first3=Rosa|last4=Virgilio|first4=Bruna|last5=Melis|first5=GianBenedetto|last6=Mallarini|first6=Giorgio|title=Mature and immature ovarian teratomas: CT, US and MR imaging characteristics|journal=European Journal of Radiology|volume=72|issue=3|year=2009|pages=454–463|issn=0720048X|doi=10.1016/j.ejrad.2008.07.044}}</ref> | ||
* | *On [[Ultrasound]] imaging, it may have variable appearances, however, the three most common appearances from the most common to least common include:<ref name="SabaGuerriero2009">{{cite journal|last1=Saba|first1=Luca|last2=Guerriero|first2=Stefano|last3=Sulcis|first3=Rosa|last4=Virgilio|first4=Bruna|last5=Melis|first5=GianBenedetto|last6=Mallarini|first6=Giorgio|title=Mature and immature ovarian teratomas: CT, US and MR imaging characteristics|journal=European Journal of Radiology|volume=72|issue=3|year=2009|pages=454–463|issn=0720048X|doi=10.1016/j.ejrad.2008.07.044}}</ref><ref name="pmid11259710">{{cite journal |vauthors=Outwater EK, Siegelman ES, Hunt JL |title=Ovarian teratomas: tumor types and imaging characteristics |journal=Radiographics |volume=21 |issue=2 |pages=475–90 |date=2001 |pmid=11259710 |doi=10.1148/radiographics.21.2.g01mr09475 |url=}}</ref> | ||
* | **Cystic lesion with a projecting tubercle (Rokitansky nodule) into the cyst lumen that is densely echogenic | ||
* | **A mass with partial or diffuse echogenicity due to [[sebaceous]] material and [[ hair]] within the cyst cavity | ||
**A cyst cavity with multiple thin, echogenic bands owing to hair materials | |||
:* 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 | ||
Revision as of 17:14, 27 February 2019
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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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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 teratoma
- Ultrasound is the most frequently used modality for the diagnosis.[5]
- On Ultrasound imaging, it may have variable appearances, however, the three most common appearances from the most common to least common include:[5][6]
- 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
- ↑ 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
- ↑ 5.0 5.1 Saba, Luca; Guerriero, Stefano; Sulcis, Rosa; Virgilio, Bruna; Melis, GianBenedetto; Mallarini, Giorgio (2009). "Mature and immature ovarian teratomas: CT, US and MR imaging characteristics". European Journal of Radiology. 72 (3): 454–463. doi:10.1016/j.ejrad.2008.07.044. ISSN 0720-048X.
- ↑ Outwater EK, Siegelman ES, Hunt JL (2001). "Ovarian teratomas: tumor types and imaging characteristics". Radiographics. 21 (2): 475–90. doi:10.1148/radiographics.21.2.g01mr09475. PMID 11259710.