pulmonary embolism: findings

• normal chest (25%)
• platelike atelactasis
• Westermark sign
• "knuckle sign"
• local widening of artery by impacted embolus
• segmental / lobar consolidation
• pleural effusion

• wedge-shaped consolidation (50%)
• may cavitate
• Hampton hump
• pleural effusion (50%)
• no air-bronchogram
• "melting sign"
• Fleischner lines
• platelike atelactasis (25%)
• cardiomegaly / CHF (20%)
• elevated hemidiaphragm (20%)

see: pulmonary embolism

© 2002, C.E. Kahn, Jr.
2002-04-18