Thymolipoma simulating cardiomegaly: diagnostic usefulness of computed tomography

We reported the case of a 46-year-old man with thymolipoma whose chest X-ray initially suggested cardiomegaly. Computed tomography (CT) clearly demonstrated the existence of a large mass adjoining the left ventricular wall in the mediastinum. CT also allowed estimation of the character of the mass including its size, extent, and consistency. At thoracotomy, the tumor was excised and thymolipoma was diagnosed histopathologically.