Figure 2. Thymic asthma. Sagittal illustration of tracheal narrowing (arrows) due to the enlarged thymus. In this case, tracheal narrowing is exaggerated with neck extension. Th = thymus. (Reprinted, with permission, from reference 6.)
Figure 2. Thymic asthma. Sagittal illustration of tracheal narrowing (arrows) due to the enlarged thymus. In this case, tracheal narrowing is exaggerated with neck extension. Th = thymus. (Reprinted, with permission, from reference 6.)