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==Overview==
==Overview==
Ultrasound may be helpful in the diagnosis of ovarian dermoid cyst. Findings on pelvic ultrasound suggestive of ovarian dermoid include unilocular, cystic adnexal mass with 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, mural hyperechoic dermoid plug, presence of fluid-fluid levels, and multiple thin, echogenic bands caused by hair in the cyst cavity (the dot-dash pattern).<ref name=ok>Mature (cystic) ovarian teratoma. Radiopedia. http://radiopaedia.org/articles/mature-cystic-ovarian-teratoma Accessed on February 19, 2016</ref><ref name="pmid9762997">{{cite journal| author=Patel MD, Feldstein VA, Lipson SD, Chen DC, Filly RA| title=Cystic teratomas of the ovary: diagnostic value of sonography. | journal=AJR Am J Roentgenol | year= 1998 | volume= 171 | issue= 4 | pages= 1061-5 | pmid=9762997 | doi=10.2214/ajr.171.4.9762997 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=9762997  }} </ref>


==Ultrasound==
==Ultrasound==
*Ultrasound may be helpful in the diagnosis of ovarian dermoid cyst.  
*Ultrasound may be helpful in the diagnosis of ovarian 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><ref name="pmid9762997">{{cite journal| author=Patel MD, Feldstein VA, Lipson SD, Chen DC, Filly RA| title=Cystic teratomas of the ovary: diagnostic value of sonography. | journal=AJR Am J Roentgenol | year= 1998 | volume= 171 | issue= 4 | pages= 1061-5 | pmid=9762997 | doi=10.2214/ajr.171.4.9762997 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=9762997  }} </ref>
*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><ref name="pmid9762997">{{cite journal| author=Patel MD, Feldstein VA, Lipson SD, Chen DC, Filly RA| title=Cystic teratomas of the ovary: diagnostic value of sonography. | journal=AJR Am J Roentgenol | year= 1998 | volume= 171 | issue= 4 | pages= 1061-5 | pmid=9762997 | doi=10.2214/ajr.171.4.9762997 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=9762997  }} </ref>
**Unilocular, cystic adnexal mass with some mural components
**Unilocular, cystic adnexal mass with mural components
**Diffusely or partially echogenic mass with posterior sound attenuation from the sebaceous material and hair within the cyst cavity
**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)
***An echogenic interface at the edge of mass that obscures deep structures (the tip of the iceberg sign)

Revision as of 15:51, 19 February 2016

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [2]Associate Editor(s)-in-Chief: Soujanya Thummathati, MBBS [3]

Overview

Ultrasound may be helpful in the diagnosis of ovarian dermoid cyst. Findings on pelvic ultrasound suggestive of ovarian dermoid include unilocular, cystic adnexal mass with 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, mural hyperechoic dermoid plug, presence of fluid-fluid levels, and multiple thin, echogenic bands caused by hair in the cyst cavity (the dot-dash pattern).[1][2]

Ultrasound

  • Ultrasound may be helpful in the diagnosis of ovarian dermoid cyst.
  • Findings on pelvic ultrasound suggestive of ovarian dermoid include:[1][2]
    • Unilocular, cystic adnexal mass with 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 other vascular ovarian masses.
  • The findings on doppler ultrasound may include:[1]
    • No internal vascularity
      • Internal vascularity needs further workup to exclude a malignant lesion.

Gallery

  • The ultrasound of the submental area showing a sizeable infrasonic formation with distinct boundaries.[3]

    The ultrasound of the submental area showing a sizeable infrasonic formation with distinct boundaries.[3]

  • The ultrasound of the submental area showing a sizeable infrasonic formation with distinct boundaries.[3]

    The ultrasound of the submental area showing a sizeable infrasonic formation with distinct boundaries.[3]

  • Tansabdominal USG: Uterus long axis - normal uterus, left adnexal ovarian dermoid cystic lesion noted.[4]

    Tansabdominal USG: Uterus long axis - normal uterus, left adnexal ovarian dermoid cystic lesion noted.[4]

  • Ovarian dermoid left adnexa[4]

    Ovarian dermoid left adnexa[4]

  • Ovarian dermoid right adnexa[4]

    Ovarian dermoid right adnexa[4]

References

  1. ↑ 1.0 1.1 1.2 Mature (cystic) ovarian teratoma. Radiopedia. http://radiopaedia.org/articles/mature-cystic-ovarian-teratoma Accessed on February 19, 2016
  2. ↑ 2.0 2.1 Patel MD, Feldstein VA, Lipson SD, Chen DC, Filly RA (1998). "Cystic teratomas of the ovary: diagnostic value of sonography". AJR Am J Roentgenol. 171 (4): 1061–5. doi:10.2214/ajr.171.4.9762997. PMID 9762997.
  3. ↑ 3.0 3.1 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.
  4. ↑ 4.0 4.1 4.2 Image courtesy of Dr Maulik S PatelRadiopaedia (original filehere). [1] CreativeCommons BY-SANC


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