Snowstorm sign (complete hydatiform mole)
Last revised by Wedyan Yousef Alrasheed
on 4 Feb 2023
Citation, DOI, disclosures and article data
Citation:
Skandhan A, Alrasheed W, Rasuli B, et al. Snowstorm sign (complete hydatiform mole). Reference article, Radiopaedia.org (Accessed on 22 Mar 2025) https://doi.org/10.53347/rID-37546
rID:
37546
Article created:
12 Jun 2015,
Avni K P Skandhan
Disclosures:
At the time the article was created Avni K P Skandhan had no recorded disclosures.
View Avni K P Skandhan's current disclosures
Last revised:
4 Feb 2023,
Wedyan Yousef Alrasheed
Disclosures:
At the time the article was last revised Wedyan Yousef Alrasheed had no financial relationships to ineligible companies to disclose.
View Wedyan Yousef Alrasheed's current disclosures
Revisions:
10 times, by
10 contributors -
see full revision history and disclosures
Systems:
Sections:
Synonyms:
- Granular appearance: complete hydatiform mole
- Snow storm appearance: complete hydatiform mole
- Snow storm sign: complete hydatiform mole
- Snowstorm appearance: complete hydatiform mole
Snowstorm sign in obstetric imaging is classically seen in complete hydatiform mole. It is characterised by the presence of many hydropic villi which gives the ultrasonographic appearance of a central heterogeneous mass having a solid, hyperechoic area and interspersed with a multitude of cystic areas and filling the entire uterine cavity.
A similar sign has also been described in extracapsular breast implant ruptures.
References
- 1. Nucci MR, Oliva E. Gynecologic Pathology. Churchill Livingstone. (2009) ISBN:0443069204. Read it at Google Books - Find it at Amazon
- 2. Springhouse. Professional Guide to Diseases. Lippincott Williams & Wilkins. (2009) ISBN:0781778999. Read it at Google Books - Find it at Amazon
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