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[Invasive thymoma extending into the superior vena cava and the right atrium: a case report and review of the literature].

If the neoplastic extension with the higher vena cava can be observed during the evolution of the invasive thymomes, the tumoral extension in the right auricle, remains on the other hand an exception. We report an invasive case of thymome to higher intracellar extension, right intraatrial and pleuropulmonary revealed by a syndrome undermines higher and a left pleurisy. The transthoracic echocardiography supplemented by the echocardiography transoesophageal pose the cardiac diagnosis of tumor, and it is the thoracic tomodensitometry which highlights a tumoral process mediastinal of malignant pace invading the left inominal venous trunk, the higher vena cava and extending in the right auricle. The diagnosis of certainty is carried by the endobronchial biopsy and the puncture tomodensitometric biopsy under control of the mediastinal mass after anatomopathological examination. Under chemotherapy, the evolution over 18 months is marked by the absence of cardiovascular complications in spite of the non regression of the tumoral mass. This observation stresses the importance of the realization of the echocardiography especially transoesophageal in front of all invasive thymome and the reliability of the puncture biopsy scanoguided like diagnoses technique not very invasive in the forms not extirpables. The forecast of this affection depends on the effectiveness of the processing. The surgery when it is possible, remains the principal therapeutic measurement which really proved reliable.