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Unusual localization of a malignant fibrous histiocytoma on the mitral valve

Antonella Fontana1, Jennifer Francesca Sciuchetti, Lucia Boffi

  • 1Cardiology Department, San Gerardo Hospital, Via Pergolesi 33, 20052 Monza, MI, Italy.

European Journal of Echocardiography : the Journal of the Working Group on Echocardiography of the European Society of Cardiology
|October 7, 2009
PubMed

The present report describes the case of a 55-year-old woman who suffered from cardio-embolic stroke originating from malignant fibrous histiocytoma (MFH) localized on the mitral valve. The patient underwent transthoracic two-/three-dimensional and transoesophageal echocardiography which demonstrated the mass protruding in the outflow tract of the left ventricle. Differential diagnosis had to be made with other masses in the left ventricle, such as thrombi, vegetations, and cardiac tumours. Surgery was performed to remove the tumour and the surgery findings confirmed echocardiographic images. Primary cardiac tumours are a rare entity, and their incidence is approximately 0.0017-0.019%. The majority of them are benign, but in a quarter of cases they are malignant. This case is an example of an MFH which caused embolism to the central nervous system.

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