Truncus arteriosus: fetal echocardiogram

Case contributed by Dr Cathy Cluver

Presentation

Tertiary review for fetal cardiac assessment

Patient Data

Age: Second trimester

Four chamber view

Modality: Ultrasound

The four chamber view shows left axis deviation.

LVOT/5CV

Modality: Ultrasound

Fetal echocardiography of truncus arteriosus on the 5 chamber view. The 1st truncal branch is clearly seen coming off posterior to the large trunk.

RVOT/3vv and 3vt

Modality: Ultrasound

A single large trunk is seen to be giving rise to the pulmonary arteries and aorta.

Case Discussion

In truncus arteriosus, a single common artery arises from the heart and supplies coronary, pulmonary and systemic circulation. This case demonstrates the typical findings of truncus arteriosus on standard fetal echo views.

Images courtesy of Dr Simon Meagher

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Case Information

rID: 27116
Case created: 21st Jan 2014
Last edited: 24th Sep 2016
Inclusion in quiz mode: Included

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