Figure 15. (a–c) Enhanced CT scans in a 70-year-old man with intrathoracic goitre showing a large, inhomogeneously enhancing left paratracheal mass (arrowheads), displacing the trachea (T) to the right side. The mass is contiguous with the left lobe of the thyroid gland (th, c) on cephalad scan. Contiguity with the thyroid gland helps to distinguish intrathoracic goiter from lymphadenopathy.