1-2-3 rule (ovary)
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Citation:
Hacking C, Kogan J, Jones J, et al. 1-2-3 rule (ovary). Reference article, Radiopaedia.org (Accessed on 14 Dec 2024) https://doi.org/10.53347/rID-66258
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66258
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At the time the article was created Craig Hacking had no recorded disclosures.
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At the time the article was last revised Joshua Kogan had no financial relationships to ineligible companies to disclose.
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The 1-2-3 rule is a simple aide-mémoire describing the nomenclature of any small simple anechoic cystic appearing structure within an ovary on ultrasound:
<1 cm = follicle
1-2 cm = dominant follicle
>3 cm = cyst
References
- 1. Langer J, Oliver E, Lev-Toaff A, Coleman B. Imaging of the Female Pelvis through the Life Cycle. RadioGraphics. 2012;32(6):1575-1597. doi:10.1148/rg.326125513