{"paper_id":"70f624c6-37aa-4893-90e5-dfaaa07dc640","body_text":"Abstract\nOvarian endometriosis is a common form of endometriosis. Typically, on ultrasound, it appears as a cystic lesion with “ground-glass” echogenicity with no papillary projection or solid areas. This cystic lesion is also known as an ovarian endometrioma or “chocolate cyst” due to the cyst’s content.\nAccess this chapter\nTax calculation will be finalised at checkout\nPurchases are for personal use only\nSimilar content being viewed by others\nReferences\nRedwine DB. Ovarian endometriosis: a marker for more extensive pelvic and intestinal disease. Fertil Steril. 1999;72:310–5.\nSokalska A, Timmerman D, Testa AC, Van Holsbeke C, Lissoni AA, Leone FP, Jurkovic D, Valentin L. Diagnostic accuracy of transvaginal ultrasound examination for assigning a specific diagnosis to adnexal masses. Ultrasound Obstet Gynecol. 2009;34:462–70.\nAlcázar JL, Guerriero S, Laparte C, Ajossa S, Ruiz-Zambrana A, Melis GB. 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Mean grey value is lower in endometriomas: differentiating a hypoechogenic adnexal cyst by 3-dimensional power Doppler ultrasound--a preliminary study. J Chin Med Assoc. 2011;74:75–80.\nAuthor information\nAuthors and Affiliations\nCorresponding author\nEditor information\nEditors and Affiliations\n5.1 Electronic Supplementary Material\nIn this video, acoustic streaming in a case of ovarian endometrioma can be observed. Note the movement of the cyst’s particles (AVI 9349 kb) (AVI 9349 kb)\nIn this case, the adhesion of the ovary to the uterus is clearly noted when moving the transvaginal probe back and forth (MP4 1342 kb) (MP4 1342 kb)\nIn this case, the ovarian endometrioma is not attached to the uterus, and we can observe the sliding of the cyst against the cervix (MP4 965 kb) (MP4 965 kb)\nThis video corresponds to a case of endometrioma decidualization during pregnancy. A highly vascularized cystic solid mass can be seen. The cyst was surgically removed, and histologic analysis proved it was a decidualized endometrioma (MP4 4081 kb) (MP4 4081 kb)\nRights and permissions\nCopyright information\n© 2018 Springer International Publishing AG, part of Springer Nature\nAbout this chapter\nCite this chapter\nAlcázar, J.L. (2018). Ovarian Endometriosis. In: Guerriero, S., Condous, G., Alcázar, J.L. (eds) How to Perform Ultrasonography in Endometriosis. Springer, Cham. https://doi.org/10.1007/978-3-319-71138-6_5\nDownload citation\nDOI: https://doi.org/10.1007/978-3-319-71138-6_5\nPublished:\nPublisher Name: Springer, Cham\nPrint ISBN: 978-3-319-71137-9\nOnline ISBN: 978-3-319-71138-6\neBook Packages: MedicineMedicine (R0)","source_license":"CC0","license_restricted":false}