Left atrial appendage myxofibrosarcoma: A rare masquerader of myxoma and thrombus—“all that glitters is not gold” |
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| Authors: | Muhammad Shoaib Khan MD Sahadev Reddy MD Richard Lombardi RT Pitti Isabel MD Walter E. Mcgregor MD Bang Tang MD George Gabriel DO Robert W Biederman MD |
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| Affiliation: | 1. Division of Cardiovascular Medicine, Department of Cardiac MRI, Allegheny General Hospital, Pittsburgh, PA, USA;2. Department of Cardiothoracic, Allegheny General Hospital, Pittsburgh, PA, USA;3. Department of Pathology, Allegheny General Hospital, Pittsburgh, PA, USA;4. Department of General Cardiology, Allegheny General Hospital, Pittsburgh, PA, USA |
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| Abstract: | Left atrial appendage mass can occasionally pose a serious challenge to physicians to identify the nature of the mass with the aid of imaging techniques. We present a case of 67‐year‐old man, who was evaluated for suspected left atria myxoma. Transesophageal echocardiography revealed a heterogeneous density originating from left atrial appendage, thought to be most consistent with a myxoma. Cardiac magnetic resonance imaging, uncharacteristically, gave an equivocal picture, suggesting the mass to be a myxoma on initial imaging and a thrombus with evidence of liquefaction necrosis following postcontrast enhancement. Surprisingly, histopathology of the mass following its surgical excision yielded a rare diagnosis of myxofibrosarcoma. |
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| Keywords: | cardiac magnetic resonance left atrial appendage myxofibrosarcoma myxoma thrombus |
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