The Warthin-Like Variant of Papillary Thyroid Carcinoma: A Comparison with Classic Type in the Patients with Coexisting Hashimoto’s Thyroiditis

Figure 1

The Warthin-like variant of papillary carcinoma is associated with chronic lymphocytic (Hashimoto) thyroiditis. (a) The tumor shows well-developed papillae with dense lymphoplasmacytic infiltration of the stalks. The surrounding normal thyroid parenchyma exhibits Hashimoto’s thyroiditis. (b) Tumor cells have granular oncocytic cytoplasm and nuclear features of papillary carcinoma including optically clear nuclei, nuclear grooves, and intranuclear pseudo-inclusions. A dense infiltration of lymphoplasma cells is seen in the stalk of papillary structures.

(a)

(b)