Pulmonary bronchogenic cysts, however, may become infected and present with cough and fever.
Male predominance is reported.
Bronchogenic cysts result from abnormal budding or branching of the ventral diverticulum of the forgut or tracheobronchial tree during embryological development. These thin walled cysts are lined with respiratory epithelium and filled with protein rich, mucoid material. Classic radiographic manifestations are a well-defined round or oval mass commonly located just inferiorly to the carina. CT demonstrates a sharply defined, smoothly marginated, homogeneous mass. These masses are usually of water density but may be associated with higher CT numbers when the internal contents are mucoid.