Fig. 4

Chest computed tomography scan. a Mediastinal window and b lung window: mediastinal mass 1 month later (axial 12 × 7.5 cm; longitudinal 14 cm). The size of the heteroplasia increased about 10%
Chest computed tomography scan. a Mediastinal window and b lung window: mediastinal mass 1 month later (axial 12 × 7.5 cm; longitudinal 14 cm). The size of the heteroplasia increased about 10%