title: [Postnatally acquired pulmonary cyst: differential diagnosis of pediatric cystic pulmonary lesions].
abstract: BACKGROUND
  Differential diagnosis of infantile pulmonary cysts comprises congenital cystic lesions (including foregut cysts) and pneumatoceles (i.e., pulmonary cysts of acquired, inflammatory or traumatic origin).
  
  
  METHODS
  We report the resection of a subpleural air-filled lung cyst of 4 cm in a former preterm (33rd week of pregnancy) at the age of 8 months that was first diagnosed 7 days postnatally by chest X-ray. Pneumatocele was diagnosed pathomorphologically.
  
  
  CONCLUSIONS
  In children, most pneumatoceles are caused by trauma or pneumonia. In the case described, disruption of subpleural alveolar walls due to high pressure ventilation is the likely cause. Differential diagnoses are discussed.
authors.affiliation: Abteilung für Kinderpathologie,Institut für Pathologie, Universitätsklinikum Bonn, Sigmund-Freud-Strasse 25, 53127, Bonn. annette.mueller@ukb.uni-bonn.de
authors.forename: A M
authors.initials: AM
authors.lastname: Müller
authors.forename: E
authors.initials: E
authors.lastname: Mayer
authors.forename: R
authors.initials: R
authors.lastname: Schumacher
authors.forename: K M
authors.initials: KM
authors.lastname: Müller
authors.forename: W
authors.initials: W
authors.lastname: Kamin
mesh_terms: D002648:Child; D003560:Cysts / Q000196:embryology / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D008171:Lung Diseases / Q000196:embryology / Q000473:pathology* / Q000601:surgery; D008297:Male; D010994:Pleura / Q000196:embryology / Q000473:pathology; D011247:Pregnancy