Anterior mediastinal fibrosis with superior vena caval obstruction complicating the synovitis-acne-pustulosis-hyperostosis-osteomyelitis syndrome.

A syndrome of predominantly palmo-plantar pustular psoriasis associated with anterior chest wall (sternoclavicular, manubriosternal) inflammation has previously been described. In this case, a further patient is reported where chest wall involvement is complicated by anterior mediastinal fibrosis and superior vena caval obstruction.