Spontaneous thrombosis of an unroofed coronary sinus: case report

In UCS, the coronary sinus communicates with the left atrium. The majority of patients are asymptomatic, and the anomaly usually goes undetected. In this patient, UCS was found incidentally with concurrent spontaneous CST. The ischaemic colitis was likely due to cardioembolism from the CST. In the absence of evidence-based practice, we described our cautious approach to anticoagulation in this critically unwell patient. Furthermore, advances in cardiac intervention have seen an increasing need to instrument the coronary sinus and an increased awareness of coronary sinus anomalies is important. Cardiac CT provides an excellent imaging tool for assessing the coronary sinus anatomy (as demonstrated in this case) and can be helpful in pre-procedural planning.