Unusual case of a right atrial inflammatory myofibroblastic tumor presenting with an episodic cyanosis in an infant.

Cardiac inflammatory myofibroblastic tumor (IMT) is a rare benign tumor that occurs mainly in infants and children. We report a case of right atrial IMT in a 1-month-old girl with episodic cyanosis. Both echocardiography and cardiac computed tomography revealed a right atrial mass. The patient underwent a complete surgical resection of the mass and the postoperative histological examination confirmed the diagnosis of cardiac IMT. The patient recovered well after the operation and further follow-up evaluation was uneventful.

Primary cardiac composite hemangioendothelioma with calcification mimicking a right atrial myxoma: A rare entity.

Composite hemangioendothelioma (CHE) is a rare vascular tumor which shows varying combination of benign, low-grade, and malignant vascular components on pathology. CHE is usually located on the surface of the dermis and subcutaneous tissue of the extremities. We report an unusual case of CHE in the heart.

Giant primary cardiac alveolar rhabdomyosarcoma of the right atrium.

Primary cardiac alveolar rhabdomyosarcoma (ARMS) is an extremely rare malignant tumor with dismal prognosis. We herein report a case of right atrial ARMS in a 63-year-old female with intermittent dizziness. Complete surgical resection of the mass was performed and the postoperative histopathologic examination confirmed ARMS. The patient received adjuvant therapy after surgery and was doing well at 1-year follow-up.