CD20 Antigen Loss in T-cell/Histiocyte-Rich Diffuse Large B-cell Lymphoma Following R-CHOP Therapy: A Case of Immune Escape Ay¿egül Ezgi Çetin; Ali Turunç; Berrak Ça¿la ¿enol; Birol Güvenç;

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TRANSFORMATION OF CHRONIC MYELOMONOCYTIC LEUKEMIA (CMML) INTO MYELOID SARCOMA: A RARE CASE WITH CERVICAL LYMPH NODE INVOLVEMENT Esra Nur Saygeçitli; Hüseyin Koçak; Ali Turunç; Birol Güvenç;