Key result
Recurrent left atrial mass misdiagnosed as benign myxoma proves to be low-grade leiomyosarcoma.
Why the study?
The diagnostic challenges and potential misdiagnosis of recurrent left atrial masses as myxoma versus malignant myxoid sarcoma were not well characterized.
Case Report (n=1)
No
This case highlights the significant diagnostic challenges in differentiating low-grade cardiac sarcomas with a myxoid appearance from benign cardiac myxomas, which can delay appropriate definitive treatment.
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May warrant extended post-resection surveillance; extends sparse case data on recurrent myxoma but leaves optimal protocols open.
Mozaffari et al. (2016) conducted a case report in Cardiac Sarcoma (Leiomyosarcoma) (n=1). Surgical excision and immunohistochemical evaluation was evaluated on Final histopathological diagnosis. A recurrent left atrial mass with a deceptive myxoid appearance, initially misdiagnosed as a benign myxoma, was ultimately diagnosed as a low-grade leiomyosarcoma.
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