Systematic film review 3.Pleura
• Follow the pleural surface around the lung periphery.
• The costophrenic angles should be V-shaped• Look for the minor and major fissures.They
are normally hair-line structures
Pneumothorax
• Peripheral (apical) hyperlucent zone devoid of lung markings.
• Visceral pleural line (retracted lung) inferomedially.
Pleural effusion
• Homogenous density in the dependent part in the up-right position; typically with a meniscus sign.
• Small effusions may only obliterate CP >s• Silouhetting of diaphragm.• Diffuse haziness on the side of effusion in
supine position.