%0 Journal Article %A Asli Gül Akgül %A Muhip Kanko %A Salih Topçu %A Aykut Eliçora %A Serife Tuba Liman %A Seymur Salih Mehmetoglu %A Hasan Tahsin Sarisoy %A Sevtap Gümüstas %T A case of pulmonary sequestration behaves as cyst hydatic %D 2011 %J European Respiratory Journal %P p4331 %V 38 %N Suppl 55 %X Pulmonary sequestration is an uncommon disease with non-functioning pulmonary tissue and anomalous systemic blood supply. Diagnosis depends on identification of abnormal systemic vessels. We report a case who went on thoracotomy due to cyst hydatic and the sequestration was diagnosed during the operation.Case: A 68-year-old man complaining of a non-productive cough, stomach ache, nausea and vomiting, admitted to our clinic. He was diagnosed with hepatic cyst hydatic and was treated with surgery one year ago. Chest x-ray showed a prominency at aortic arch. Chest CT imaging was revealed a paraaortic lesion with suspicion about its dansity of cystic or solid which was located posteriorly.This was tought again a hydatic cyst suitable with his medical history and an operation was planned. Left thoracotomy was performed. During the operation the lesion was detected as a sequestration. By histopathological study the lesion was confirmed to be a sequestration. In his 4th. month follow-up the patient remains asymptomatic with normal radiography results.Aberrant feeding vessels cannot always be demonstrated by conventional CT. Moreover, volumetric helical imaging allows three dimensional reconstruction of data, may be useful in the demonstration and characterization of the lesions and also showing vascular structures. Pulmonary sequestration must be in mind for differantial diagnosis of pulmonary lesions especially adjacent to vasculary structures. %U