Cardiac metastasis of bladder carcinoma: case report and literature review

Introduction: The diagnosis of an intracardiac lesion may be an incidental finding or suggested by the presence of symptoms. Commonly, intracardiac lesions represent thrombi or vegetations and, in that regard, may be accompanied by a specific clinical context, such as atrial fibrillation or bacterial endocarditis, respectively. Rarely, these masses may be malignant. Case report: We report a case of a 69-year-old male on maintenance therapy with immunotherapy for bladder cancer carcinoma with documented lung, lymph node, and bone metastases. Three months after beginning therapy, the patient underwent a thoracoabdominal-pelvic computed tomography that revealed a mass in the right ventricle. A transthoracic echocardiogram confirmed a non-obstructive mass adherent to the free wall of the right ventricle. A positron emission tomography was performed and suggested a metastatic nature. Conclusion: Despite being rare, secondary cardiac tumors must be remembered as a differential diagnosis since they exert important implications for both treatment and prognosis.