{"paper_id":"940d6bca-fe99-4365-aa06-4e2381135754","body_text":"Abstract\nAdenomyosis is a common nonneoplastic uterine disease pathologically composed of ectopic endometrial tissues and a myometrial inflammatory change. Transvaginal ultrasonography is used as a primary imaging modality for screening adenomyosis. MRI is considered a confirmative study for diagnosing adenomyosis. Frequently, adenomyosis diffusely involves myometrium, resulting in muscular hypertrophy. Less frequently, the lesion can manifest a localized form that resembles various uterine lesions including myoma, endometrial cancer, and myometrial contraction. Since adenomyosis can show various imaging features, it may cause a diagnostic dilemma. This chapter will describe imaging features of adenomyosis, unusual types or growth patterns of adenomyosis, and differential diagnoses.\nSimilar content being viewed by others\nReferences\nAgostinho L, Cruz R, Osório F, et al. MRI for adenomyosis: a pictorial review. Insights Imaging. 2017:8(6):549–556. https://doi.org/10.1007/s13244-017-0576-z.\nCelli V, Dolciami M, Ninkova R, et al. MRI and adenomyosis: what can radiologists evaluate? Int J Environ Res Public Health. 2022;19(10):5840. https://doi.org/10.3390/ijerph19105840.\nChapron C, Vannuccini S, Santulli P, et al. MRI of adenomyosis: where are we today? Can Assoc Radiol J. 2023;74(1):58–68. https://doi.org/10.1177/08465371221114197.\nCunningham RK, Horrow MM, Smith RJ, et al. Adenomyosis: a sonographic diagnosis. Radiographics. 2018;38(5):1576–1589. https://doi.org/10.1148/rg.2018180080.\nGuo SW, Mao X, Ma Q. The pathogenesis of adenomyosis vis-à-vis endometriosis. J Clin Med. 2020;9(2):485. https://doi.org/10.3390/jcm9020485.\nKishi Y, Suginami H, Kuramori R, et al. Four subtypes of adenomyosis assessed by magnetic resonance imaging and their specification. Am J Obstet Gynecol. 2012;207(2):114.e1–7. https://doi.org/10.1016/j.ajog.2012.06.027.\nNovellas S, Chassang M, Delotte J, et al. MRI characteristics of the uterine junctional zone: from normal to the diagnosis of adenomyosis. AJR Am J Roentgenol. 2011;196(5):1206–1213. https://doi.org/10.2214/AJR.10.4877.\nSong SE, Sung DJ, Park BJ, et al. MR imaging features of uterine adenomyomas. Abdom Imaging. 2011;36(4):483–488. https://doi.org/10.1007/s00261-010-9640-6.\nTakeuchi M, Matsuzaki K. Adenomyosis: usual and unusual imaging manifestations, pitfalls, and problem-solving MR imaging techniques. Radiographics. 2011:31(1):99–115. https://doi.org/10.1148/rg.311105110.\nZhang T, Sun Y, Gong Y, et al. Relationship between the magnetic resonance imaging appearance of adenomyosis and endometriosis phenotypes. Hum Reprod. 2017;32(7):1393–1401. https://doi.org/10.1093/humrep/dex088.\nCompeting Interest Declaration\nThe author(s) has no competing interests to declare that are relevant to the content of this manuscript.\nAuthor information\nAuthors and Affiliations\nCorresponding author\nEditor information\nEditors and Affiliations\nSection Editor information\nRights and permissions\nCopyright information\n© 2025 Springer Nature Singapore Pte Ltd.\nAbout this entry\nCite this entry\nHan, N.Y., Kim, S.H. (2025). Adenomyosis. In: KIM, S.H. (eds) Gynecologic Imaging. Springer, Singapore. https://doi.org/10.1007/978-981-99-2955-9_7-1\nDownload citation\nDOI: https://doi.org/10.1007/978-981-99-2955-9_7-1\nReceived:\nAccepted:\nPublished:\nPublisher Name: Springer, Singapore\nPrint ISBN: 978-981-99-2955-9\nOnline ISBN: 978-981-99-2955-9\neBook Packages: Living Reference MedicineReference Module Medicine","source_license":"CC0","license_restricted":false}