Introduction: Certain cardiac tumors are asymptomatic and are detected by chance after autopsy. The clinical signs and symptoms of cardiac tumors vary greatly and are determined mainly by the tumor's location and size rather than its histology. Cardiac masses have a broad differential diagnosis, and it is critical to differentiate between neoplastic and non-neoplastic cardiac masses and benign and malignant neoplasms. Surgery is advised in situations of heart failure symptoms, treatment-resistant ventricular arrhythmias, or blockage of the heart's inlet or outlet pathways. Presentation: In this research, a 60-year-old man presented to the hospital with complaints of shortness of breath, and after an echocardiogram and CT scan, he was diagnosed with a right atrial tumor, which required surgery. Conclusion: The patient was sent to the oncology unit for additional treatment after surgery, excision of the mass, and analysis of the pathology sample.