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Primary intermediate-grade cardiac myxofibrosarcoma with osseous metaplasia: an extremely rare occurrence with a
Magdalena Sanchez-Uribe1, Juan Antonio Retamero2, J Gomez Leon3
1Department of Pathology, Hospital de Especialidades, CMN La Raza, Calle Seris s/n, Col. La Raza, C.P. 02990, Delegación Azcapotzalco, México D.F., Mexico.
Abstract:
Primary cardiac myxofibrosarcoma (MFS) is a very rare cardiac tumor with no more than 22 cases reported in the literature, including our case. We report an MFS arising in the left atrium in a 65-year-old woman who presented with pneumonia and cardiac failure. The 9.5-cm mass was diagnosed by echocardiogram. Histopathology examination showed an intermediate-grade MFS with osseous metaplasia, a feature that has not been reported before.

