Surgical Treatment of Invasive Cardiac Lipoma: Case Report

Highlights Invasive cardiac lipoma is a rare benign cardiac tumor that can cause life-threatening conditions depending on its size and location. This article reports a rare case of surgical treatment of an invasive lipoma of the right atrium. Abstract The aim of this research is to demonstrate a rare case of surgical treatment of an invasive lipoma of the right atrium. Patient Ya. , female, 46 years old, was admitted to the department with periodic attacks of rapid arrhythmic heartbeat. ECG: the rhythm is regular, sinus, 79 beats/min heart rate. According to transthoracic echocardiography: an additional floating heterogeneous formation of a round shape with an uneven contour, measuring 32 × 29 mm, attached to the junction of the superior vena cava was visualized and it was placed in the cavity of the right atrium. According to the results of CT and MRI with contrast the cardiac tumor growing into the right atrium wall and extracardially was also visualized. An operation was performed to remove the cardiac tumor of the right atrium, to reconstruct the right atrium with a xenopericardial patch and de Vega tricuspid valve annuloplasty on the beating heart with cardiopulmonary bypass (77 minutes). The size of the outer part of the tumor was 30 × 70 mm, the inner – 40 × 50 mm. The postoperative period proceeded without complications. Microscopic examination of cardiac tumor showed a histological picture of a cardiac lipoma. In conclusion, it should be noted that invasive lipoma of the right atrium is a rare benign tumor of the heart and this research is of scientific interest for the further study of this phenomenon. Early surgical removal of the lipoma is important, taking into account its characteristics, due to the possible risk of tumor growth and infiltration into the surrounding structure. Preoperative planning requires accurate data on the location of the tumor and its infiltration into the adjacent heart structure.