Thymic sail sign
? aspiration post vomiting episode
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Tracheostomy in place. There is no confluent consolidation or atelectasis. No pleural effusion.
Cardiothymic silhouette is normal (sail sign of the thymus is noted).
The thymus is a great mimicker for lung pathology. There are several radiographic features which help identify a normal thymus:
- Thymic sail sign
- Subtle notches on either side of the cardiothymic contour.
- Wavy or scalloped peripheral contour
The normal thymus, however large it is, should not displace the trachea or compress the adjacent structures.