Coronary sinus thrombosis in a patient with amyloidosis, the role of multimodality imaging: a case report.

A high frequency of intracardiac thrombosis is seen in amyloidosis. However, coronary sinus thrombosis is an uncommon complication. A multimodality imaging approach appears to be useful for the early diagnosis of coronary sinus thrombosis. The low specificity of the clinical signs, as well as the fast impairment of the patients, could result in fatal complications such as acute myocardial infarction, arrhythmia, and sudden death. Early screening, particularly in high-risk patients, as well as the use of early anticoagulant therapy, could reduce the associated morbidity and mortality.