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      Mixoma de átrio direito com origem na veia cava inferior: uma localização rara com implicações diagnósticas e terapêuticas Translated title: Right atrium myxoma originating from the inferior vena cava: an unusual location with therapeutic and diagnostic implications

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          Abstract

          Os mixomas são os tumores cardíacos primários mais freqüentes. Sua localização habitual é o átrio esquerdo, sendo encontrados também em outros locais. É relatado o caso de paciente de 71 anos que, com diagnóstico de tumor em átrio direito, foi submetido a operação para retirada do tumor. A operação foi realizada, sendo confirmado o diagnóstico e procedida a ressecção do tumor com sucesso e sem intercorrência. Em estudo ecocardiográfico de controle no 4º mês de pós-operatório, evidenciou-se presença de massa residual que parecia originar-se na veia cava inferior. Foi submetida a nova operação, em que foi realizada a ressecção do mixoma, que se originava na veia cava inferior e se projetava para o interior do átrio direito. Com o tumor, foi ressecada, na sua implantação, uma porção da veia cava inferior. O presente relato mostra uma localização rara de origem do mixoma, bem como as complicações quanto ao diagnóstico e à abordagem no tratamento cirúrgico.

          Translated abstract

          The myxomas are the most frequent primary cardiac tumors. They are usually located in the left atrium but can be found in other places. This is a case report of a 71 year old patient with diagnosis of a tumor arising from the right atrium, submitted to a surgical resection of the tumor. The operation was realized and the diagnosis confirmed. Resection was successful and the procedure uneventful. Four months postoperatively a standard two-dimensional echocardiogram revealed a residual mass that seemed to arise from the inferior vena cava. He was reoperated and the myxoma originating from the inferior vena cava and extending to the interior of the right atrium was resected. At the basis of the tumor implantation, a portion of the inferior vena cave was resected. The present report shows an unusual location of the myxoma as well as the complications regarding the diagnosis and the approach to surgical treatment.

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          Most cited references6

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          Right atrial myxoma presenting as Budd-Chiari syndrome.

          A 25-year-old man experienced rapidly progressing Budd-Chiari syndrome. Despite extensive radiological investigations, no atrial mass could be identified. At operation, a right atrial myxoma was found that originated from the eustachian valve and prolapsed into the inferior vena cava. Following successful removal of the myxoma, the ascites and peripheral edema resolved completely. Right atrial myxoma is a rare cardiac tumor that may present with embolic, obstructive, or constitutional signs and symptoms and is a potentially curable cause of Budd-Chiari syndrome.
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            Cardiac Myxoma Arising From the Inferior Vena Cava

            This report documents what we believe to be the first reported case of a cardiac myxoma originating from inferior vena caval tissue. Myxomas account for 50 percent of cardiac tumors and present with either embolic, obstructive, or constitutional symptoms and signs. Diagnosis is facilitated by angiography and echocardiography and should be followed promptly by careful and complete removal of the mass and adjacent tissue with close follow-up by clinical and echocardiographic examinations.
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              Right atrial myxoma originating from the inferior vena cava.

              A patient undergoing successful excision of a right atrial myxoma arising from the inferior vena cava is reported. The rarity of this case prompted a review of the literature in which only 2 other patients with a right atrial myxoma originating from inferior vena cava tissue were found.
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                Author and article information

                Journal
                rbccv
                Brazilian Journal of Cardiovascular Surgery
                Braz. J. Cardiovasc. Surg.
                Sociedade Brasileira de Cirurgia Cardiovascular (São Paulo, SP, Brazil )
                0102-7638
                1678-9741
                September 2000
                : 15
                : 3
                : 255-258
                Affiliations
                [01] orgnameUniversidade de São Paulo orgdiv1Faculdade de Medicina orgdiv2Hospital das Clínicas
                Article
                S0102-76382000000300009 S0102-7638(00)01500309
                7bec86c0-0c41-4da0-9b76-5a1ee600a2c0

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : December 1999
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 6, Pages: 4
                Product

                SciELO Brazil

                Self URI: Texto completo somente em PDF (PT)
                Categories
                Relatos de Caso

                Myxoma,Vena cava inferior,Heart neoplasms,Veia cava inferior,Neoplasias cardíacas,Mixoma

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