Bronchogenic cyst of the interatrial septum presenting as atrioventricular block.
Bronchogenic cysts are congenital lesions that are a remnant from abnormal budding of the embryonic foregut. These cysts are usually single; most cases are either asymptomatic or present with respiratory symptoms. A 43-year-old woman presented with intermittent type II atrioventricular block during cholecystectomy. The cardiac evaluation including transthoracic and transesophageal echocardiography and magnetic resonance imaging revealed a cystic homogeneous mass within the interatrial septum. The patient underwent surgical resection of the mass and closure of the septal defect. Histopathology identified ciliated columnar epithelium, consistent with the diagnosis of a bronchogenic cyst.
Borges
Adrian C
AC
Department of Cardiology and Angiology, Charité - Universitätsmedizin Berlin, Berlin, Germany.
Knebel
Fabian
F
Lembcke
Alexander
A
Panda
Alexander
A
Komoda
Takeshi
T
Hiemann
Nicola E
NE
Meyer
Rudolf
R
Baumann
Gert
G
Hetzer
Roland
R
D000328:Adult; D054087:Atrial Septum; D054537:Atrioventricular Block / Q000175:diagnosis* / Q000209:etiology*; D001994:Bronchogenic Cyst / Q000150:complications*; D005260:Female; D006801:Humans