Last Updated on August 19, 2026
Introduction
• 12 ribs
• Anterior ribs are more diagonally downwards; Posterior ribs are more horizontal
Some common indications of doing chest X-rays
• TRO lung pathology e.g. pneumonia, TB,
pleural effusion
Example: If pleural effusion on CXR is minimal, pleural tapping may not be required To look ETT position, as well as intubation related complications especially pneumothorax • To look CVL position as well as CVL insertion-related complications especially pneumothorax
•
Post intubation
•
Post central venous catheter insertion at neck / chest
• If CVL position is abnormal, CVL needs to be removed/adjusted
Common CXR views/projection
Some common abnormalities
• Subcutaneous emphysema of chest wall • Blunted costophrenic angle can only be detected in CXR if fluid is more than 175 mL Indicates perforated viscus
• Rib fracture (trauma cases)
• Cardiomegaly
•
Blunted costophrenic angle
• Patches of consolidation
•
Air under diaphragm
Important Signs from Chest X-Rays
--- This content is for premium members only. ---
Hyperinflated lungs
Features:
• Flattened hemidiaphragm
• > 6 anterior ribs or >10 posterior ribs in the mid-clavicular line at the lung diaphragm level
• Hyperlucent lungs (less bronchovascular markings per cm2)
Differential diagnosis
• COPD
• Acute bronchiolitis (children)
Related Posts
- common X-rays view/projection [open]