1-2-3 rule (ovary)
Last revised by Jeremy Jones on 25 Aug 2021
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Citation:
Hacking C, Jones J, Kang O, et al. 1-2-3 rule (ovary). Reference article, Radiopaedia.org (Accessed on 16 Apr 2024) https://doi.org/10.53347/rID-66258
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rID:
66258
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Disclosures:
At the time the article was created Craig Hacking had no recorded disclosures.
View Craig Hacking's current disclosures
Last revised:
25 Aug 2021,
Jeremy Jones ◉
Disclosures:
At the time the article was last revised Jeremy Jones had no recorded disclosures.
View Jeremy Jones's current disclosures
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9 times, by
9 contributors -
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The 1-2-3 rule is a simple aide-mémoire describing the nomenclature of any small simple anechoic structure in the 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
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