A Case of Transmural Lipoma of the Right Atrium

• DOI: 10.11648/j.ccr.20240802.15
• Publication Date: 2024-06-19T02:10:19Z
• Authors: Lin Song; Xuejie Li
• Keywords: Atrium (architecture)

Primary cardiac tumors are a relatively rare disease. About 75% of primary benign. The most common histological type is myxoma, followed by fibroma, lipoma, etc. We report case 53-year-old female patient admitted to the hospital due "repeated palpitations and tightness breath for 5 years, worsened 2 days." Preoperative transthoracic echocardiography revealed hypoechoic mass approximately 3.1 cm x 3.0 in size within right atrium, suggesting an intracardiac mass: nature? Chest computed tomography (CT) indicated fat-density nodule with larger cross-sectional about 2.5 cm, lipoma. underwent excision atrial under cardiopulmonary bypass. Intraoperative transesophageal (TEE) closely connected wall, no signs tricuspid valve obstruction. Exploration during surgery yellow, smooth-surfaced size, penetrating from which additional 2mm margin wall were completely excised. A suitable-sized bovine pericardial patch was used repair defect wall. Postoperative TEE showed disappearance mass. postoperative pathological result Cardiac lipoma benign tumor. sites occurrence this tumor left ventricle, pericardium. Based on their location, lipomas can be divided into three types: subepicardial, intramyocardial, subendocardial lipomas, being common, accounting over 50% lipomas. Clinical symptoms largely depend growth location tumor, it generally believed that asymptomatic. Symptomatic treated curative surgical excision. Transmural atrium rare, such may affect adjacent structures both inside outside Although did not significantly function or blood flow, experienced repeated breath. Despite exhibited transmural showing certain degree invasiveness, making effective treatment method.