title: Intrapericardial left-sided ectopic thyroid mass supplied by the left circumflex artery.
abstract: Intrapericardial left-sided ectopic thyroid tissue is a rare entity. We report a 47-year old female patient with an intrapericardial mass mounting the left atrial wall. Two prominent vessels, both originating from the left circumflex artery (LCX), supplied the tumour. Owing to the compression of the left atrium and the left upper pulmonary vein, the patient was highly symptomatic with exertional dyspnoea and ventricular extrasystoles. Histopathological examination showed regressive thyroid adenoma with no signs of malignancy. Complete resection was feasible. The evaluation of thyroid hormone levels was not indicative for diagnosis. Postoperative hormone substitution appeared to be unnecessary.
authors.affiliation: Medical University of Cardiac Surgery, Innsbruck, Austria bastian.schneider@tirol-kliniken.at.
authors.forename: Bastian
authors.initials: B
authors.lastname: Schneider
authors.affiliation: Medical University of Cardiac Surgery, Innsbruck, Austria.
authors.forename: Johannes
authors.initials: J
authors.lastname: Holfeld
authors.affiliation: Medical University of Cardiac Surgery, Innsbruck, Austria.
authors.forename: Michael
authors.initials: M
authors.lastname: Grimm
authors.affiliation: Medical University of Cardiac Surgery, Innsbruck, Austria.
authors.forename: Ludwig
authors.initials: L
authors.lastname: Müller
mesh_terms: D006348:Cardiac Surgical Procedures / Q000379:methods*; D002828:Choristoma / Q000175:diagnosis* / Q000601:surgery; D003331:Coronary Vessels / Q000000981:diagnostic imaging*; D005260:Female; D006331:Heart Diseases / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D019028:Magnetic Resonance Imaging, Cine; D008875:Middle Aged; D010496:Pericardium; D013961:Thyroid Gland; D014057:Tomography, X-Ray Computed
keywords: Cardiac tumour; Ectopic thyroid tissue; Intrapericardial mass