Imaging Case of the Week 107

The following PA and lateral chest x-rays are from a 12 year old with mild cough. What can be deduced from the x-ray?

chest x-ray PA view

chest x-ray lateral view


[peekaboo_link name=”Answer”]Answer[/peekaboo_link] [peekaboo_content name=”Answer”]

The PA chest x-ray shows obscuration of the right heart border. The lateral chest x-ray shows a pectus excavatum. There is no air space opacity or collapsed lung segment overlapping the heart shadow.

Pectus Excavatum


3 causes of silhouetting of the right heart border are:

  • Right middle lobe consolidation involving the medial segment
  • Right middle lobe collapse involving the medial segment
  • Pectus excavatum.