Citation, DOI, disclosures and article data
Citation:
Weerakkody Y, Khoshnaw K, Hacking C, et al. Umbilical arterial aneurysm. Reference article, Radiopaedia.org (Accessed on 16 Apr 2024) https://doi.org/10.53347/rID-13568
An umbilical arterial aneurysm (UAA) is an extremely rare but potentially lethal vascular anomaly which is usually detected in utero.
Location
It tends to favor the placental end of the umbilical artery in the cord.
Associations
Concurrently associated anomalies are thought to be high and include
Antenatal ultrasound
May be seen as a cystic to elongated dilatation in relation to an umbilical artery. Color Doppler interrogation may show non-pulsatile turbulent flow.
Treatment and prognosis
The presence of a UAA can be lethal. When there are no associated anomalies and the fetus is potentially viable otherwise, some recommend delivery as soon as fetal lung maturity is assured when this diagnosis is made prenatally 5.
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1. Sentilhes L, Vivet-lefébure A, Patrier S et-al. Umbilical artery aneurysm in a severe growth-restricted fetus with normal karyotype. Prenat. Diagn. 2007;27 (11): 1059-61. doi:10.1002/pd.1817 - Pubmed citation
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2. Hill AJ, Strong TH, Elliott JP et-al. Umbilical artery aneurysm. Obstet Gynecol. 2010;116 Suppl 2 : 559-62. doi:10.1097/AOG.0b013e3181e7d280 - Pubmed citation
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3. Berg C, Geipel A, Germer U et-al. Prenatal diagnosis of umbilical cord aneurysm in a fetus with trisomy 18. Ultrasound Obstet Gynecol. 2001;17 (1): 79-81. doi:10.1046/j.1469-0705.2001.00313.x - Pubmed citation
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4. Shen O, Reinus C, Baranov A et-al. Prenatal diagnosis of umbilical artery aneurysm: a potentially lethal anomaly. J Ultrasound Med. 2007;26 (2): 251-3. J Ultrasound Med (full text) - Pubmed citation
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5. Sepulveda W, Corral E, Kottmann C et-al. Umbilical artery aneurysm: prenatal identification in three fetuses with trisomy 18. Ultrasound Obstet Gynecol. 2003;21 (3): 292-6. doi:10.1002/uog.69 - Pubmed citation
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6. Fox H, Sebire NJ. Pathology of the placenta. W B Saunders Co. (2007) ISBN:1416025928. Read it at Google Books - Find it at Amazon
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