title: Thymic cyst as a differential diagnosis of acute thoracic aortic disease.
abstract: Patient was referred to our Service with acute thoracic pain and diagnosis of intramural hematoma of the ascending aorta for surgical correction. The diagnostic investigation showed a cystic tumor involving the ascending aorta causing restriction of the right ventricular inflow. After resection, the histologic analysis disclosed the diagnosis of thymic cyst. The aim of this study is to describe a rare mediastinal tumor that may simulate a radiologic feature with characteristics of intramural hematoma and may result in a wrong therapeutic approach.
authors.affiliation: Disciplina de Cirurgia Cardiovascular, Heart Institute (InCor), University of São Paulo Medical School. mgtiveron@yahoo.com.br
authors.forename: Marcos Gradim
authors.initials: MG
authors.lastname: Tiveron
authors.forename: Ricardo Ribeiro
authors.initials: RR
authors.lastname: Dias
authors.forename: Luiz Alberto
authors.initials: LA
authors.lastname: Benvenuti
authors.forename: Noedir Antônio Groppo
authors.initials: NA
authors.lastname: Stolf
mesh_terms: D000208:Acute Disease; D000368:Aged; D001013:Aorta, Thoracic / Q000000981:diagnostic imaging; D001018:Aortic Diseases / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005260:Female; D006406:Hematoma / Q000175:diagnosis*; D006801:Humans; D008476:Mediastinal Cyst / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D011859:Radiography