Right Ventricular Mass: Intracardiac Ectopic Thyroid

Abstract

A 53-year-old woman complained of intermittent angina pectoris for 2 years and was admitted to our hospital to further evaluate cardiac mass. Electrocardiograph(ECG) showed sinus rhythm with incomplete right bundle branch block. Because a primitive cardiac tumor was highly suspected, exploratory surgery was performed. Intraoperative inspection revealed a red mass with a broad base arising from the middle-upper part of the interventricular septum close to the septal leaflet of the tricuspid valve.Keywords: Intracardiac ectopic thyroid; Angiography; Malignant tumors; Thyroid scintigraphy Case ReportA 53-year-old woman complained of intermittent angina pectoris for 2 years and was admitted to our hospital to further evaluate cardiac mass. Physical examination was unremarkable. Results of routine laboratory tests including thyroid function (FT3 5.32 pmol/L, FT4 21.07 pmol/L, TSH 4.1 uIU/ml) were all normal. Chest plain film showed a normal size heart (Figure 1). Angiography was not performed because of the potential risk of peripheral embolization due to the dislodgement of tumor fragment or surface thrombosis. Because a primitive cardiac tumor was highly suspected, exploratory surgery was performed. Intraoperative inspection revealed a red mass with a broad base arising from the Internal Medicine: Open Access