Warthin‐like tumour of the thyroid gland: RET/PTC expression indicates it is a variant of papillary carcinoma

Abstract

All clinicopathological data along with the presence of the extensive lymphocytic infiltrate could imply a more favourable prognosis. The expression of RET/PTC fusion gene adds support to the hypothesis that this tumour is a variant of PC, probably related to the oncocytic variant of PC.