title: [Congenital absence of left pericardium simulating tumor of the anterior mediastinum].
abstract: The authors report a case of a patient presenting atypical dyspnea symptom. The physical examination, the chest roentgenogram and EKG were abnormal; the echocardiogram showed an abnormal mass compressing the outflow tract of the right ventricle (RV). These data were confirmed by a computerized tomography. The cardiac catheterization showed a heart deviation to the left and a RV outflow tract gradient of 10 mmHg. Consequently a surgery was necessary. The surgical findings presented an absence of the left pericardium and no tumor was found. This is a rare entity that may be misdiagnosed as other heart diseases but this is the first case in which a tumor of the anterior mediastinum was suspected.
authors.affiliation: Biocor Hospital de Denças Cardiovasculares, Belo Horizonte, MG.
authors.forename: H C
authors.initials: HC
authors.lastname: Miotto
authors.forename: M A
authors.initials: MA
authors.lastname: Braga
authors.forename: O C
authors.initials: OC
authors.lastname: de Oliveira
authors.forename: R L
authors.initials: RL
authors.lastname: Santiago
authors.forename: M R
authors.initials: MR
authors.lastname: Barbosa
authors.forename: F A
authors.initials: FA
authors.lastname: Fantini
authors.forename: B
authors.initials: B
authors.lastname: Gontijo Filho
authors.forename: M O
authors.initials: MO
authors.lastname: Peredo
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D004452:Echocardiography; D004562:Electrocardiography; D006801:Humans; D008297:Male; D008479:Mediastinal Neoplasms / Q000175:diagnosis*; D010496:Pericardium / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000601:surgery; D014057:Tomography, X-Ray Computed
vernacular_title: Agenesia de pericárdio esquerdo simulando tumor de mediatino anterior.