Ovarian germ cell tumor ultrasound: Difference between revisions
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** Heterogenous appearance with partially solid lesion | ** Heterogenous appearance with partially solid lesion | ||
** Foci of calcification | ** Foci of calcification | ||
'''Monoderma teratoma''' | |||
* Struma ovarii: | |||
** Nonspecific finding on the ultrasound imaging.<ref name="OutwaterSiegelman2001">{{cite journal|last1=Outwater|first1=Eric K.|last2=Siegelman|first2=Evan S.|last3=Hunt|first3=Jennifer L.|title=Ovarian Teratomas: Tumor Types and Imaging Characteristics|journal=RadioGraphics|volume=21|issue=2|year=2001|pages=475–490|issn=0271-5333|doi=10.1148/radiographics.21.2.g01mr09475}}</ref> | |||
** A heterogenous mass which is predominantly solid | |||
** A complex mass with multiple solid nad cystic areas | |||
'''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== | ||
{{reflist|2}} | {{reflist|2}} | ||
Revision as of 14:57, 1 March 2019
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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 mature 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
- Ultrasound imaging is not helpful for the diagnosis of immature teratoma.[7]
- The US finding are usually nonspecific and include:
- Heterogenous appearance with partially solid lesion
- Foci of calcification
Monoderma teratoma
- Struma ovarii:
- Nonspecific finding on the ultrasound imaging.[7]
- A heterogenous mass which is predominantly solid
- A complex mass with multiple solid nad cystic areas
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
- ↑ 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.
- ↑ 7.0 7.1 Outwater, Eric K.; Siegelman, Evan S.; Hunt, Jennifer L. (2001). "Ovarian Teratomas: Tumor Types and Imaging Characteristics". RadioGraphics. 21 (2): 475–490. doi:10.1148/radiographics.21.2.g01mr09475. ISSN 0271-5333.