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Arch Otolaryngol Head Neck Surg. 2003;129:900-901.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

Diagnosis: Papillary thyroid carcinoma with metastatic extension to the thyroglossal tract associated with previous Hashimoto thyroiditis

Thyroid malignancies are rare, accounting for 0.5 to 1.0% of the deaths that occur as a result of malignant disease. In the United Kingdom, the incidence is 4 per 100 000 per annum.¹ More than 90% of thyroid malignancies are well-differentiated adenocarcinomas, with papillary carcinoma accounting for 80% of these. Papillary thyroid carcinomas have a 4:1 predominance in women, with the peak incidence between the third and fifth decades of life. Although the majority of these tumors present as a solitary thyroid nodule, they have a propensity for lymphatic spread in 50% of cases at presentation and are often multicentric (30%-50%). Only 5% of patients develop distant metastasis.¹

The relationship between Hashimoto thyroiditis and papillary carcinoma has been a contentious issue since its initial description. Singh et al² describe a rate of Hashimoto thyroiditis that is 2.77 higher in patients with papillary carcinoma than in the general population. However, the presence . . . [Full Text of this Article]

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Arch Otolaryngol Head Neck Surg. 2003;129(8):899.
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