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==Ultrasound==
==Ultrasound==
*Ultrasound may be helpful in the diagnosis of dermoid cyst.
*Findings on pelvic ultrasound suggestive of ovarian dermoid include:<ref name=ok>Mature (cystic) ovarian teratoma. Radiopedia. http://radiopaedia.org/articles/mature-cystic-ovarian-teratoma Accessed on February 19, 2016</ref>
**Unilocular, cystic adnexal mass with some mural components
**Diffusely or partially echogenic mass with posterior sound attenuation from the sebaceous material and hair within the cyst cavity
***An echogenic interface at the edge of mass that obscures deep structures (the tip of the iceberg sign)
**Mural hyperechoic dermoid plug (rokitansky nodule)
**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)
===Doppler Ultrasound===
*Doppler ultrasound may be helpful in the exclusion of vascular masses and the findings may include:<ref name=ok>Mature (cystic) ovarian teratoma. Radiopedia. http://radiopaedia.org/articles/mature-cystic-ovarian-teratoma Accessed on February 19, 2016</ref>
**No internal vascularity
***Internal vascularity needs further workup to exclude a malignant lesion.


==Gallery==
==Gallery==

Revision as of 14:55, 19 February 2016

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Soujanya Thummathati, MBBS [2]

Overview

Ultrasound

  • Ultrasound may be helpful in the diagnosis of dermoid cyst.
  • Findings on pelvic ultrasound suggestive of ovarian dermoid include:[1]
    • Unilocular, cystic adnexal mass with some mural components
    • Diffusely or partially echogenic mass with posterior sound attenuation from the sebaceous material and hair within the cyst cavity
      • An echogenic interface at the edge of mass that obscures deep structures (the tip of the iceberg sign)
    • Mural hyperechoic dermoid plug (rokitansky nodule)
    • 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)

Doppler Ultrasound

  • Doppler ultrasound may be helpful in the exclusion of vascular masses and the findings may include:[1]
    • No internal vascularity
      • Internal vascularity needs further workup to exclude a malignant lesion.

Gallery

References

  1. 1.0 1.1 Mature (cystic) ovarian teratoma. Radiopedia. http://radiopaedia.org/articles/mature-cystic-ovarian-teratoma Accessed on February 19, 2016
  2. 2.0 2.1 Makos C, Noussios G, Peios M, Gougousis S, Chouridis P (2011). "Dermoid cysts of the floor of the mouth: two case reports". Case Rep Med. 2011: 362170. doi:10.1155/2011/362170. PMC 3172983. PMID 21922020.


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