Fig. 2From: Airway obstruction requiring tracheal intubation after fine-needle aspiration of the thyroid gland: a case reportA CT findings before FNA. The thyroid nodule in the right lobe shows low signal intensity compared with surrounding thyroid gland tissue. The right internal jugular vein is dilated. The left panel shows a CT slide obtained at the thyroid gland level, while the right panel shows a slice at the hyoid bone level. B CT findings 1.5 h after FNA. There is swelling not only of the thyroid gland but also of the retropharyngeal, especially on the right side. The right internal jugular vein is dilated. C CT findings before intubation (4 h after FNA). Expansion of the retropharyngeal tissue has increased bilaterally, and the narrowness of the retropharyngeal space is evident. The right internal jugular vein is dilated. D CT findings 1 day after intubation. Swelling of the retropharyngeal tissue has subsided dramatically, and thyroid gland enlargement has decreased. The right internal jugular vein is still dilated. E CT findings 3 days after FNA. Swelling of the retropharyngeal tissue has resolved, and thyroid gland enlargement has further decreased. The right internal jugular vein was continuously dilatedBack to article page