Endocrine Abstracts

Carcinoma showing thymus-like differentiation (CASTLE) is a rare malignancy, localized in the thyroid parenchyma. As far as we know, only a few CASTLE cases are described in literature. The diagnosis is based on immunoreactivity, the main characteristic is positivity to CD5, which reveals a thymic differentiation. We report the case of a 63-years-old male, who presented with a 3 cm solid, hypoechoic nodule in the lower part of the left thyroid lobe, with underlying structures ...