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CC BY-NC-ND 4.0 · Journal of Fetal Medicine 2019; 06(02): 103-105
DOI: 10.1007/s40556-019-00198-7
Brief Communication

First Trimester Diagnosis of Sirenomelia: A Case Report

Shilpa Satarkar 
1   Antarang Sonography and Colour Doppler Center, Aurangabad, Maharashtra, India
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Abstract

Sirenomelia or the mermaid syndrome is a rare and lethal congenital anomaly. It is characterized by fusion of lower extremities. It is associated with bilateral renal agenesis, anomalies of rectum, sacrum, cardiovascular system and abdominal wall. Pathognomic finding is a single umbilical artery, the ‘persistent vitelline artery’ which distinguishes sirenomelia from caudal regression syndrome. Sirenomelia has strong association with maternal diabetes mellitus. We report a case of sirenomelia diagnosed in first trimester. Early diagnosis was possible as protocol-based anatomic evaluation was performed. Diagnosis of sirenomelia is easier in first trimester as severe oligohydramnios in later gestation hampers the fetal evaluation.

Keywords

First trimester fetal anomalies - Early diagnosis - Sirenomelia


Publication History

Received: 11 February 2019

Accepted: 02 April 2019

Article published online:
08 May 2023

© 2019. Society of Fetal Medicine. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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