Infiltrative cardiac lymphoma with tricuspid valve involvement in a young man

Figure 1 Transesophageal and transthoracic echocardiography before and after chemotherapy. A: Transesophageal echocardiography showed the appearance of the lymphomatous infiltration (dotted line) and a neoplastic infiltration on the tricuspid valve (short arrow). A moderate pericardial effusion is seen; B: This transthoracic echocardiography performed after 6 cycles of rituximab, cyclophosphamide, vincristine, doxorubicin and prednisolone regime showed the resolution of the tumor mass and the disappearance of the tricuspid valve tumor infiltration; RA: Right atrium; LA: Left atrium; LVOT: Left ventricular outflow tract.

Figure 2 Histopathological staining of the left axillary lymph node. A: The H E slide showing diffuse malignant large lymphoid cells consisting of centroblasts, immunoblasts and large centrocyte-like cells with occasional multinucleated cells (HE stain, × 40); B: The tumor cells are positive for CD20 (Immunochemistry staining, × 10).