Pleural lipoma

(A) Frontal chest radiograph shows a left upper pleural mass (arrow) with incomplete border sign laterally and obtuse angles of interface with the chest wall.
(B) CT thorax with coronal plane rendering in the same patients shows the left upper lateral fatty mass protruding into the left pleural space (arrowhead).
(C) Computed tomography (CT) thorax in transverse plane shows a left upper lateral fatty mass protruding into the pleural space (dashed arrow).