Fig. 1From: Cardiopulmonary arrest caused by airway obstruction due to acute transient thyroid swelling after fine-needle aspiration biopsyCT images of the thyroid gland a 3Â weeks before fine-needle aspiration biopsy, b axial, and c sagittal views of the white dot line in b, immediately after tracheal intubation. a Three weeks before fine-needle aspiration biopsy. A mass with calcification is observed in the left lobe of the thyroid gland. The thyroid gland is hardly identified especially at slightly below the vocal cords. b Immediately after tracheal intubation. Diffuse swelling of the thyroid gland, especially at the subglottic level compared before biopsy. c Sagittal views of the white dot line in b. A swollen thyroid gland extending from the lingual bone developing beyond the manubrium of the sternum. No hemorrhage was observedBack to article page