Radiology Quiz 47997 | Radiopaedia.orgViewing playlist: ICRF: 7 Paediatric- Chest

X-ray

Frontal

Lateral

Name the sign created by the pulmonary opacity in this radiograph.

Spine sign

Which pulmonary lobe is affected?

Left lower lobe.

Pulmonary opacity in the left lower lobe is best appreciated overlying the lower thoracic spine on the lateral radiograph.