[Ectopic thyroid tissue in the heart - a case report]. / Ektopowa tkanka tarczycowa w sercu. Opis przypadku i przeglad pismiennictwa.

A case of a 48 year old female admitted to the hospital for further evaluation and treatment of an intracardiac tumour, is presented. The patient underwent surgical excision of the tumour localised in the right ventricular outflow tract with bioprosthetic tricuspid valve implantation and pacemaker insertion due to the procedure-related compete atrio-ventricular block. Histopathological examination revealed the presence of thyroid tissue in the excised tumour. Data published in literature dealing with this topic are reviewed.