A completely resected paraganglioma arising from the right atrioventricular groove

We report a case of completely resected right atrioventricular groove paraganglioma. Primary cardiac paragangliomas are extremely rare. Only about 60 cases have been reported in the literature, and most of these tumors originated from the left atrium or the base of the aortic root and pulmonary artery; 5 cases originated from the right atrium. In our patient, the paraganglioma was largely located in the right atrioventricular groove and protruded into the right atrial wall. To our knowledge, there has been no paraganglioma reported in the right atrioventricular groove. We successfully carried out complete tumor resection. Most of these tumors are locally invasive, and complete resection is often difficult.