‘Double heart sign’ – CXR

Patients with left atrial enlargement will often have a ‘double right heart border’ sign on a frontal CXR, while collapse of the left lower lobe can sometimes result in a ‘double left heart border’ sign.

In this case, there is simply a double heart – the patient’s heart-shaped plastic necklace is projected over her left ventricle.

Case kindly contributed by Dr Deirdre Moran.