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Bronchogenic Cyst
Etiology: abnormal budding of tracheobronchial tree lined with respiratory epithelium, only communicates with tracheobronchial tree if infected
Imaging: 50% in mediastinum + 50% in lung, commonly near carina, preference for lower lobes
UGI: may cause anterior or posterior indentation on esophagus
Clinical: in mediastinum presents with dysphagia or respiratory distress, in lungs is asymptomatic
Cases of Bronchogenic Cyst
CXR shows a rounded retrocardiac mass on the left. CT with contrast of the chest shows the mass to not enhance and to be located anterior to the aorta and to the left of the inferior vena cava.