Metastatic Anaplastic Thyroid Carcinoma to the Right Ventricle.

Anaplastic thyroid carcinoma (ATC) is a rare, yet extremely aggressive form of thyroid cancer characterized by rapid growth and early metastasis to distant sites. Cardiac involvement is very uncommon and the presentation of cardiac metastasis in ATC can vary widely, highlighting the importance of early clinical recognition. We describe an extremely rare case of metastatic ATC that spread to the right ventricle.