Abstract
Ablation treatment with radioiodine (TARY) consists of oral administration of sodium iodide (131INa) in order to selectively irradiate the remaining thyroid tissue in patients with differentiated thyroid carcinoma (DTC) after surgical thyroidectomy or tumor recurrence. We present a case of a 61-year-old woman who underwent treatment for papillary carcinoma of the thyroid, follicular variant, using total thyroidectomy and lymphadenectomy, who was referred for an ablative dose of 131INa after the administration of recombinant TSH. Six days after the administration of 131INa, the patient began with a picture of difficulty in swallowing, oropharyngeal and esophageal pain, accompanied by erythema and ulcerative lesions at those levels, composing a pattern suggestive of type I hypersensitivity.
