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;

TP53-Deleted Mixed Phenotype Acute Leukemia with Widespread Nodal Disease: Complete Remission after HyperCVAD plus Azacitidine Ay¿egül Ezgi Çetin; Berrak Ça¿la ¿enol; Ali Turunç; Birol Güvenç;

Primary Extranodal Marginal Zone Lymphoma of the Maxilla with Sphenoid Bone Invasion: Excellent Response to R-CHOP Therapy Berrak Ça¿la ¿enol; Ay¿egül Ezgi Çetin; Ali Turunç; Birol Güvenç;