Posteroanterior (PA) chest radiograph demonstrates double density of the right hemidiaphragm (black and white arrow). Lateral chest radiograph shows abrupt termination of the anterior portion of the right hemidiaphragm (white arrow) before reaching the retrosternal/pericardiac fat (red arrow). Double density of the right hemidiaphragm is again appreciated. The posterior portion of the right hemidiaphragm is labelled by the black arrow. The left hemidiaphragm is labelled by blue arrow.