Untreated pulmonary sequestration with recurrent superinfection -supporting COPD development in a 42 year old male patient.

Background: Pulmonary sequestration is a congenital malformation in which nonfunctional lung tissue develops without connection to the bronchial system. The main complication is the occurrence of recurrent pneumonia.

Case Presentation: We describe the case of a patient who was incidentally diagnosed with PS as part of the diagnostic algorithm for community-acquired pneumonia.