Columnar cell variant of papillary thyroid carcinoma in an adolescent: a comprehensive histopathological, immunohistochemical, and molecular analysis
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The columnar cell variant (CCV) of papillary thyroid carcinoma (PTC) is a rare histological subtype with distinct morphological and immunohistochemical (IHC) features, which can present diagnostic challenges. We report a case of a 13-year-old girl diagnosed wi... ...
