Anterior Mediastinal Mass

Teratoma

  • Extrapleural sign

    • Peripheral location

    • Sharp outer margin

    • One edge missing

    • Concave angles

  • Pulmonary artery overlay sign

Barium swallow and labeled films below.

 

 

Anterior mediastinal mass
  • Extrapleural sign

    • Peripheral location

    • A: Sharp outer margin

    • One edge missing

    • C: Concave angles

  • B: Pulmonary artery overlay sign