PMC3738093_01
Computerized tomography of the chest showing dimensions of mediastinal mass before treatment. (A) Axial view of CT chest showing mediastinal mass measuring 7.1x5 cm and illustrating compression of trachea prior to treatment. (B) Coronal view showing length of mass at 9 cm. The mass has extended anterior to the pulmonary artery which is not visible in this view. CT of the chest showing marked decrease in size at 6 weeks of treatment on same views as A and B. (C) Axial view showing decrease in the size of mediastinal mass to 4.7x3.4 cm and marked improvement on tracheal compression. (D) Coronal view showing marked decrease in length measured at 5 cm.
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The CT scan of the chest (Figure 1) revealed a large mediastinal mass and a large pericardial effusion. The patient remained on linezolid monotherapy, and after six weeks of treatment, the repeat CT scan showed marked decrease in the size of mediastinal mass to 4.7x3.4x5 cm (Figure 1) with resolution of pericardial effusion.
Echocardiogram at parasternal short axis plane at the level of the mitral valve shows circumferential pericardial effusion with the collapse of the right ventricle during diastole consistent with pericardial tamponade. (MV - mitral valve, RV - right ventricle, PE - pericardial effusion).
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There was diastolic collapse of the right ventricle on echocardiogram consistent with tamponade (Figure 2).