Lymphoma [Disease/Finding] Lymphoma, Non-Hodgkin [Disease/Finding] Lymphoma, Small Cleaved-Cell, Diffuse Lymphoma, Nonhodgkins Lymphoma, Non-Hodgkin's C0024305 Non-Hodgkin's Lymphoma D008228 Lymphoma, Small Cleaved Cell, Diffuse C3998 Lymphoma, Non-Hodgkins N0000001910 Lymphoma, Nonhodgkin's M0012822 Non-Hodgkin Lymphoma 118601006 Lymphoma, Atypical Diffuse Small Lymphoid Lymphoma, Non-Hodgkin Diffuse Small Cleaved-Cell Lymphoma Any of a group of malignant tumors of lymphoid tissue that differ from HODGKIN DISEASE, being more heterogeneous with respect to malignant cell lineage, clinical course, prognosis, and therapy. The only common feature among these tumors is the absence of giant REED-STERNBERG CELLS, a characteristic of Hodgkin's disease. 1024301 Small Cleaved-Cell Lymphoma, Diffuse Lymphoma, Non-Hodgkin