An Oncocytic Variant of Papillary Thyroid Carcinoma Mimicking As Metastatic Adenocarcinoma: A Diagnostic Challenge

Abstract

Papillary thyroid carcinoma is the most common type of thyroid carcinoma, diagnosed on the basis of a predefined set of distinctive nuclear features. There are about 15 known variants of papillary thyroid carcinoma, and the oncocytic variant is not one of the commonly encountered prototypic conventional papillary thyroid carcinoma. We hereby report an unusual case of a 48-year-old woman presenting with thyroid swelling, which proved to be a diagnostic crisis.