Presentation
Cough and shortness of breath.
Patient Data
Age: 65 years
Gender: Female
From the case:
Left lower lobe collapse - sail sign
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The lungs are hyperinflated with relatively flat diaphragms - a sign of pulmonary emphysema. There is a dense triangular opacity overlying the cardiac shadow with increased lucency of the left upper zone relative to the right upper zone. This is the "sail sign" of left lower lobe collapse with subsequent left upper lobe hyper-expansion.
From the case:
Left lower lobe collapse - sail sign
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Red triangle highlights the sail sign of left lower lobe collapse.
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