Imaging Case of the Week 565 Answer

The chest x-ray shows

silhouetting of the right heart border. Causes for this appearance on a chest x-ray are –

a. Right middle lobe consolidation.

b. Right middle lobe collapse

c. Pectus excavatum

The patient had a severe pectus excavatum.

Keep in mind anatomical abnormalities that can present as pathological condition on a chest x-ray.