Korean J Thorac Cardiovasc Surg.
2003 Apr;36(4):277-279.
Myocardial Hamartoma Involving the Interventricular Septum
- Affiliations
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- 1Department of Thoracic and Cardiovascular Surgery, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul National University Hospital Clinical Research Institute, Korea. jrl@plaza.snu.ac.kr
- 2Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine, Korea.
- 3Department of Pathology, Seoul National University Hospital, Seoul National University College of Medicine, Korea.
Abstract
- A 15 year-old boy was referred to us because of mild dyspnea on exertion and incidentally found heart murmur. On echocardiography, a mass involving mainly interventricular septum and causing left ventricular outflow tract obstruction was detected. Cardiac catheterization demonstrated a transaortic pressure gradient of 20 mmHg. Partial excision of the septal mass was performed via aortotomy under cardiopulmonary bypass. The pathologic diagnosis revealed myocardial hamartoma. The lesion was mainly composed of mature, severely hypertrophic myocytes and intervening fibrosis. During the 5 year of follow-up after the surgery, no evidence of arrhythmia or tumor recurrence was documented.
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