Air bronchogram sign
Presentation
Cough and fever for one week.
Patient Data
Age: 45 years
Gender: Male
From the case:
Air bronchogram sign
CT
Axial C+ arterial phase
Airway surrounded by collection in alveolar spaces and loss of volume giving positive air bronchogram sign on right side.
Also noted is right-sided pleural effusion.
Case Discussion
Air bronchogram sign is a non-specific sign seen in benign as well as malignant conditions.
Consolidation or more commonly called as pneumonia is the most common benign cause of this sign.
Bronchoalveolar carcinoma (BAC) is the most common malignant lesion which gives positive air bronchogram sign.
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