Presentation
History of heavy smoking. Presents with hemoptysis and shortness of breath.
Patient Data
Age: 55 years
Gender: Male
From the case:
Azygos arch valve
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- Contrast-enhanced chest CT scan shows residual contrast agent into the azygos arch.
- Tracheobronchial calcifications are noted.
Case Discussion
- A high injection rate was used for this patient (4 ml/s of 300 mg/ml of contrast agent).
- Reflux of contrast agent into the azygos arch is seen in about 50% of patients where high injection rates are used 1.
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