Reports a rare case of a primary synovial sarcoma of the heart arising from a benign mesothelioma of the atrio-ventricular node.
Alerts clinicians to rare primary cardiac synovial sarcoma; extends histopathologic spectrum but leaves management questions open.
A primary tumour of the right atrium with morphological, ultrastructural and immunohistochemical features of a synovial sarcoma is described. This appeared to have arisen from a benign so-called mesothelioma of the atrio-ventricular node and had metastasized to the lungs. The histogenesis and relationship of these two tumours are discussed.
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Sheffield et al. (1988) studied this question.
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