Endometriomas: Diagnostic Performance of US

Maitray D. Patel, M D Patel, Vickie A. Feldstein, V A Feldstein, D C Chen, Dillon C. Chen, Scott Lipson, S D Lipson, Roy A. Filly, R A Filly
Radiology · 1999 · vol. 210(3) , pp. 739–745 · doi:10.1148/radiology.210.3.r99fe61739 · PMID:10207476 · W2058802811
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Diffuse low-level internal echoes, especially with multilocularity or hyperechoic wall foci and absence of neoplastic features, strongly indicate an endometrioma among adnexal masses.

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Abstract

PURPOSE: To determine the diagnostic performance of specific ultrasonographic (US) features in discriminating endometriomas from other adnexal masses. MATERIALS AND METHODS: Two sonologists independently reviewed the sonograms of 252 adnexal masses in 226 women and recorded US features by using a standardized checklist. The diagnostic performance of specific US features and overall reviewer impression in discriminating endometriomas from other adnexal masses were evaluated. RESULTS: There were 40 endometriomas. Diffuse low-level internal echoes were present in 38 (95%) endometriomas and 40 (19%) nonendometriomas (positive likelihood ratio, 5). The positive likelihood ratio for the diagnosis of endometrioma increased to 8 if masses with neoplastic features at gray-scale US were excluded, allowing identification of 30 endometriomas (75%). The presence of multilocularity or hyperechoic wall foci further increased the positive likelihood ratio to 48, allowing the identification of 18 endometriomas (45%). CONCLUSION: An adnexal mass with diffuse low-level internal echoes and absence of particular neoplastic features is highly likely to be an endometrioma if multilocularity or hyperechoic wall foci are present. A patient with a mass with diffuse low-level internal echoes and other US features may benefit from additional imaging.

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Condition tags

mesh:D004715endometrioma

MeSH descriptors

Adnexal Diseases Endometriosis Adnexal Diseases Adnexal Diseases Adult Cohort Studies Cysts Cysts Diagnosis, Differential Endometriosis Endometriosis Female Follow-Up Studies Genital Neoplasms, Female Genital Neoplasms, Female Humans Likelihood Functions Ovarian Cysts Ovarian Cysts Ovarian Neoplasms

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Papers in the corpus that this work cites (lower rings, blue) and that cite this one (upper rings, green). Dot size scales with the paper's in-corpus citation count — bigger dot = more influential within the endo/adeno field. Click a dot to open that paper. [ expand to 2 hops ] — adds papers reached through this work's immediate citers/citees. Heavier; up to 60 extra dots.

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Cited by (50)

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