Cardiac hemangioma originating from the coronary sinus: a rare case report in the left atrioventricular groove with successful surgical resection

Abstract

Background: Cardiac hemangioma is an extremely rare benign tumor, accounting for only approximately 2-3% of primary cardiac tumors. Cardiac hemangioma originating from the coronary sinus (segment located in the left atrioventricular groove) is a particularly rare location, which can compress adjacent structures and be life-threatening if not detected and treated promptly. We report a case of cardiac hemangioma originating from this location that was successfully surgically resected.

Materials and methods: A case report of a rare cardiac hemangioma diagnosed and successfully treated at Kien Giang General Hospital.

Results: A 46-year-old female patient was admitted to the hospital with left chest tightness, palpitations, shortness of breath, and dysphagia. Diagnostic imaging modalities (echocardiography, contrast-enhanced chest CT, cardiac MRI, coronary angiography DSA) revealed a 52x65mm mass originating from the  coronary sinus (segment in the left atrioventricular groove), compressing the left atrium, the right inferior pulmonary vein orifice, and the inferior wall of the left ventricle. The patient underwent surgical resection of the mass with the support of a cardiopulmonary bypass system. The surgical time was 3.5 hours, and the cardiopulmonary bypass time was 60 minutes. Histopathological results confirmed cavernous cardiac hemangioma. The postoperative course was uneventful, and the patient was discharged after 10 days.

Conclusion: Cardiac hemangioma originating from the coronary sinus (segment in the left atrioventricular groove) is an extremely rare clinical entity. Accurate diagnosis relies on the coordination of modern imaging modalities. Complete surgical resection with the support of cardiopulmonary bypass is a safe and effective treatment method, providing a good prognosis for the patient.