Primary Pulmonary Valve Leiomyosarcoma in a 35-Year-Old Woman

Primary cardiac leiomyosarcomas are rare, with a high incidence of local recurrence. Herein, we report the case of a 35-year-old woman who was admitted with right ventricular failure and suspected pulmonary embolism. Upon echocardiography, we detected a mass in the pulmonary trunk that involved the pulmonary valve and led to valvular stenosis.The optimal protocol for treating these tumors is as yet unclear. Complete resection can rarely be achieved. However, palliative surgery is usually undertaken because many patients present with mechanical obstruction, such as significant pulmonary stenosis.     

Benign Metastasizing Leiomyoma in the Heart of a 45-Year-Old Woman

We report a rare case of benign metastasizing leiomyoma in the heart of a 45-year-old woman 2 years after a uterine leiomyoma had been discovered during hysterectomy. Computed tomograms at presentation showed a large mixed cystic mass in the pelvis and bilateral lung nodules suggestive of metastatic disease. A large cardiac mass, attached to the chordae of the tricuspid valve and later shown to be histopathologically consistent with uterine leiomyoma, was successfully resected through a right atriotomy. This case suggests that benign metastasizing leiomyoma should be considered in the differential diagnosis of right-sided cardiac tumors.