CTICasesSubcarinal Infected (or Inflamed) Bronchogenic Cyst
Imaging findings
Chest radiographs in an adult woman with acute chest pain demonstrate a rounded, well-defined, lobulated subcarinal mass on the AP projection that is clearly visible on the lateral view, appearing since a prior chest radiograph from four years earlier. CT confirms a homogeneous fluid-density cystic mass in the subcarinal space without solid components.
Key takeaways
A bronchogenic cyst is the most common mediastinal cystic mass, with the subcarinal space being the most common location. The vast majority are incidentally discovered, but infection or hemorrhage into the cyst can cause acute chest pain and prompt clinical presentation. CT demonstrates a fluid-attenuation cystic mass (simple or complex) without internal enhancement. Surgical resection is the treatment of choice.
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