Left ventricular apical lipoma resected under the guidance of a mediastinoscope.

We report a 57-year-old man who was found to have a left ventricular apical mass during a routine check-up. He previously had neither any subjective symptom nor hemodynamic problem. The mass was located deeply in the left ventricular cavity. With exploration using a mediastinoscope, we successfully resected the tumor, which was a yellowish lipoid mass that adhered to the trabeculae near the apex. Histopathologic examination of the tumor was consistent with a lipoma, a very rare benign primary cardiac tumor. The mediastinoscope can be useful for surgical resection of tumors located deeply in the left ventricle. 2010 The Society of Thoracic Surgeons. Published by Elsevier Inc. All rights reserved.