Synchronous Pulmonary Squamous Cell Carcinoma and Mantle Cell Lymphoma of the Lymph Node
“in situ” MCL of the mediastinal lymph node (a, b). The follicles were strongly positive for CD20 (c). Neoplastic cells were negative for CD3 (d). Neoplastic cells were positive for cyclin D1 and presented a focal colonization of the mantle zones of lymphoid follicles (e, f).
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