title: Giant bypass aneurysm, a cause of suspected cardiac mass.
abstract: BACKGROUND
  A 66-years old man suffering from coronary artery disease appeared without symptoms for routine follow-up in our clinic.
  
  
  METHODS
  The echocardiogram revealed a tumorous mass of the right atrium and right ventricle. In the past, coronary revascularization with venous grafts of the right coronary artery and circumflex artery as well as internal mammaria graft to the left anterior descending artery was performed 20 years before. The general clinicians presented the case to the surgeons and it was decided to perform cardiac MRI as a preoperative diagnostic modality.
  
  
  RESULTS
  Following cardiac magnetic resonance imaging (MRI) showed a mass in the pericardium in the right atrioventricular groove with thrombotic material. Due to the MRI the patient underwent coronary angiography to confirm an aneurysm.
  
  
  CONCLUSIONS
  The learning points from this case are that cardiac MRI is a very useful tool for further evaluation of suspected cardiac masses and should be performed for further characterization.
authors.affiliation: Institute for Diagnostic and Interventional Radiology, Center of Radiology, DZHK, Georg-August-University Göttingen, UMG Universitätsmedizin Göttingen, Robert-Koch-Str. 40, 37075 Göttingen, Germany ; German Centre for Cardiovascular Research, DZHK, Göttingen, Germany.
authors.forename: Jan M
authors.initials: JM
authors.lastname: Sohns
authors.affiliation: Institute for Diagnostic and Interventional Radiology, Center of Radiology, DZHK, Georg-August-University Göttingen, UMG Universitätsmedizin Göttingen, Robert-Koch-Str. 40, 37075 Göttingen, Germany ; German Centre for Cardiovascular Research, DZHK, Göttingen, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Fasshauer
authors.affiliation: Institute for Diagnostic and Interventional Radiology, Center of Radiology, DZHK, Georg-August-University Göttingen, UMG Universitätsmedizin Göttingen, Robert-Koch-Str. 40, 37075 Göttingen, Germany ; German Centre for Cardiovascular Research, DZHK, Göttingen, Germany.
authors.forename: Wieland
authors.initials: W
authors.lastname: Staab
authors.affiliation: German Centre for Cardiovascular Research, DZHK, Göttingen, Germany ; Department of Pediatric Cardiology and Intensive Care Medicine, Georg-August-University, Göttingen, Germany.
authors.forename: Michael
authors.initials: M
authors.lastname: Steinmetz
authors.affiliation: Institute for Diagnostic and Interventional Radiology, Center of Radiology, DZHK, Georg-August-University Göttingen, UMG Universitätsmedizin Göttingen, Robert-Koch-Str. 40, 37075 Göttingen, Germany ; German Centre for Cardiovascular Research, DZHK, Göttingen, Germany.
authors.forename: Joachim
authors.initials: J
authors.lastname: Lotz
authors.affiliation: German Centre for Cardiovascular Research, DZHK, Göttingen, Germany ; Department of Cardiology and Pneumology, Georg-August-University, Göttingen, Germany.
authors.forename: Christina
authors.initials: C
authors.lastname: Unterberg-Buchwald
keywords: Aneurysm; Bypass thrombus; Cardiac MRI; Cardiac bypass aneurysm; Cardiac mass; Cardiopulmonary bypass