Fig. 14.

a–c Boy, 11 years of age, with a 2-month history of cough, weight loss and lymph nodes in the neck. a Chest radiography shows a large mediastinal mass affecting the apex of the right hemithorax with severe tracheal compression. b Coronal plane of a contrast-enhanced CT with a better delineation of the tumour and airway compression of both main bronchi. c The corresponding coronal fluoro-deoxy-glucose (FDG) PET-CT, with pathological uptake of FDG of active disease extending up to the right side of the neck