One percent of excised thyroglossal duct remnants exhibit histologic malignancy, a thyroid papillary carcinoma in 80% of the cases. The prognosis is excellent except for anaplastic types. We report the case of a 44-year-old woman with primitive thyroid papillary carcinoma diagnosed histologically as thyroglossal cyst. Its unusual aggressiveness produced local and regional spread, metastases and the patient's death in spite of treatment: Sistrunk operation, local excision of a recurrence and laryngothyroidectomy. Thyroid histology revealed the absence of carcinomatous foci.
We discuss the most noteworthy aspects of the case in relation to other reports.
CITATION Acta Otorrinolaringol Esp. 1994 Mar-Apr;45(2):124-7
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