Pectus excavatum In patients with a pectus excavatum the right heart border can be ill-defined, but this is normal. It produces a silhouette sign and thus simulating a consolidation or atelectasis of the right middle lobe. The lateral view is helpful in such cases. Pectus excavatum is a congenital deformity of the ribs and the sternum producing a concave appearance of the anterior chest wall. #Clinical #Radiology #CXR #Pectus #Excavatum #RadiologyAssistant
