Successful treatment of a rare giant right atrium aneurysm in an 8-year-old child: a case report

Figures

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  Fig. 1. Pre-operative chest X-ray

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  Fig. 2. CT scan of the chest organs. A Frontal section, the arrow shows the aneurysmal expansion of the RA, B axial section, the arrow shows the aneurysmal expansion of the RA

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  Fig. 3. Pre-operative ECHO

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  Fig. 4. Intraoperative view of RA aneurysm correction. A, B View after median sternotomy, RA aneurysm is visualized, the arrow shows the thinned free wall of the RA, C resection of the thinned RA wall, D suturing RA. The arrow shows the deformation of the wall of the left ventricle resulting from compression of the RA aneurysm, E the heart after correction, F a macropreparation of a thinned RA wall

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  Fig. 5. Microscopic preparation of the aneurysmal wall. A. This sample demonstrates a reduction in the thickness of the myocardium, with instances of complete absence. The muscle fibres display pronounced hypertrophy and dystrophy, manifesting as oedema, vacuolation of the cytoplasm, contractual changes and diffuse overgrowth of connective tissue. The endocardium is observed to be thin and uniform in consistency. A focal infiltration of lymphoid tissue is evident in the epicardium. The atrial wall displays a reduction in myocardial thickness, with complete absence in certain areas. Preserved muscle fibres with pronounced hypertrophy and dystrophy, manifesting as oedema, vacuolation of the cytoplasm, contractural changes and diffuse proliferation of connective tissue. The endocardium is observed to be thin and uniform in consistency. Focal lymphoid infiltration is observed in the epicardium. (A) Haematoxylin and eosin staining, (B) Van Gieson’s stain

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  Fig. 6. Postoperative TEE. A The lines indicate the short and long axis of the RA, B the line indicates the area of the RA