[Postnatally acquired pulmonary cyst: differential diagnosis of pediatric cystic pulmonary lesions].
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.
Müller
A M
AM
Abteilung für Kinderpathologie,Institut für Pathologie, Universitätsklinikum Bonn, Sigmund-Freud-Strasse 25, 53127, Bonn. annette.mueller@ukb.uni-bonn.de
Mayer
E
E
Schumacher
R
R
Müller
K M
KM
Kamin
W
W
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