Abstract
A 19-month-old female was admitted to our hospital for treatment of recurrent pneumonia with the chief complaints of productive cough and high temperature. Administration of antibiotics induced remission of pneumonia, with multiple cystic lung disease then revealed. Left lower lobectomy was performed for prevention of pneumonia, reexpansion of intact lung and confirmation of the diagnosis. The resected lung was occupied by multiple cysts with a thin wall measuring less than 30 mm in diameter. Histological examination showed multiple cysts lined by ciliated tall columnar or cuboidal cells and filled with foamy cells, so congenital cystic adenomatoid malformation was diagnosed. But because of repeated pneumonia many lymphoid follicles were scattered. The postoperative course was uneventful, and pneumonia has not recurred.
