title: [Pulmonary sequestrations: from radiologic to preoperative diagnosis: 2 cases with review of the literature].
abstract: Pulmonary sequestrations are defined by the presence of a non fonctional pulmonary parenchyma with an abnormal vascularisation. Their incidence ranges from 1.1% to 1.8% of all the malformations in the general population. Two types of sequestrations are described: Intralobar sequestrations: the most common, localised within a normal parenchyma. Extralobar sequestrations: totally separate from the lung with their own pleural covering. We report two cases of sequestrations. In the first case, the radioclinical presentation was strongly suggestive of this diagnosis in a 32-year old woman with recurrent hemoptysis, airspace opacity in the left retrocardiac region and a systemic vascularisation of this mass on tomodensitometry. Pathological studies after surgery confirmed the diagnosis of intralobar sequestration type I in the classification of PRYCE. In the second case a thoracoscopy performed on a 14-year-old boy who had a serohematic pleural effusion, revealed a left costodiaphragmatic mass. Surgical removal of this mass confirmed its extralobar pulmonary nature.
authors.affiliation: Hopital Abderrahmen Mami, Pavillon B. Ariana, Tunis, Tunisie.
authors.forename: Jamel
authors.initials: J
authors.lastname: Ammar
authors.forename: Hedia
authors.initials: H
authors.lastname: Ghrairi
authors.forename: Imene
authors.initials: I
authors.lastname: Ismail
authors.forename: Agnes
authors.initials: A
authors.lastname: Hamzaoui
mesh_terms: D000293:Adolescent; D000328:Adult; D001998:Bronchopulmonary Sequestration / Q000175:diagnosis* / Q000601:surgery; D005260:Female; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging*; D008297:Male; D011300:Preoperative Care; D011859:Radiography