Acute Cardiac Tamponade Secondary to Cardiac Vascular-Type Pleomorphic Leiomyosarcoma: Case Report

Figures

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  Fig. 1. a–c Echocardiogram reported pseudo-alterations in mobility due to extrinsic compression by a 7.7 × 11 cm tumor, which compressed the inferolateral, lateral wall of the left ventricle.

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  Fig. 2. a Partial resection of the lesion in its intracardiac portion of 4.6 × 2.4 × 1.3 cm. The pathology findings were pleomorphic leiomyosarcoma, arterial type, poorly differentiated, and immunohistochemistry with CD31 and CD34 negative (b, c) and desmin positive in 70% (d).

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  Fig. 3. a–f Fluorodeoxyglucose positron emission tomography/computed tomography shows left paracardiac mediastinal mass enlargement.

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  Fig. 4. a An irregular and myxoid tumor, yellow-grayish, that measured 8 cm in the greatest dimension. b Smooth muscle bundles that show predominant perivascular distribution. c Epithelioid foci with marked pleomorphism and mitotic figures. d The tumor was actin positive. The diagnosis of high-grade vascular type leiomyosarcoma was performed.