title: Infected infradiaphragmatic retroperitoneal extralobar pulmonary sequestration: a case report.
abstract: Infradiaphragmatic extralobar pulmonary sequestration is an extremely rare congenital malformation. It is more frequently diagnosed in the antenatal period due to routine ultrasonic examination of the fetus or in the first 6 months of life, though on rare occasions it is discovered incidentally in adults. A 32-yr-old man presenting with epigastric discomfort and fever was referred. Computed tomographic scanning showed that a 16-cm, multiseptated, dumbbell-shaped, huge cystic tumor was located beneath the diaphragm. On the next day, 850 mL of thick yellowish pus was drained by sonography-guided fine needle aspiration for the purpose of infection control and diagnosis, but no microscopic organisms were found in repeated culture studies. Surgical removal of the cyst was performed through thoracoabdominal incision and most of these pathologic lesions were removed but we could not find the feeding arteries or any fistulous tract to surrounding structures. Histopathologic study revealed that it was extralobar pulmonary sequestration and culture study showed that many WBC and necrotic materials were found but there were no microorganisms in the cystic contents. We report the first case of an infected infradiaphragmatic retroperitoneal extralobar sequestration which was administered a staged management and achieved an excellent clinical course.
authors.affiliation: Department of Thoracic and Cardiovascular Surgery, Guro Hospital, Korea University Medical Center, Seoul, Korea.
authors.forename: Hyun Koo
authors.initials: HK
authors.lastname: Kim
authors.forename: Young Ho
authors.initials: YH
authors.lastname: Choi
authors.forename: Se Min
authors.initials: SM
authors.lastname: Ryu
authors.forename: Han Kyeom
authors.initials: HK
authors.lastname: Kim
authors.forename: Yang Seok
authors.initials: YS
authors.lastname: Chae
authors.forename: Young-sang
authors.initials: YS
authors.lastname: Sohn
authors.forename: Hark Jei
authors.initials: HJ
authors.lastname: Kim
mesh_terms: D000328:Adult; D001998:Bronchopulmonary Sequestration / Q000150:complications / Q000473:pathology* / Q000601:surgery; D003964:Diaphragm / Q000002:abnormalities; D006801:Humans; D007239:Infections / Q000150:complications / Q000473:pathology; D008297:Male; D012187:Retroperitoneal Space / Q000002:abnormalities