Pepsi sign

Case contributed by Dr Tim Luijkx


Noonan syndrome. Pulmonary artery stenosis treated with balloon dilatation.

Patient Data

Age: 9
Gender: Male

Peculiar configuration of blood flowing both into the pulmonary artery (blue) and back towards the right ventricular outflow tract (red). In this case it's caused by turbulent blood flow after balloon dilatation treatment of pulmonary artery stenosis.

The colour coding neatly resembles the former logo of a well-known soft drink.

It is postulated by some that this sign is indicative of dyspepsia, which is more commonly (and more aptly) known as heartburn. 

DISCLAIMER: although clinical symptoms and history are factual, the presented sign is completey fictitious.

Case courtesy of Dr Lauran Stöger

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Case information

rID: 34426
Case created: 19th Feb 2015
Last edited: 28th Aug 2015
System: Cardiac
Inclusion in quiz mode: Excluded

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