Diffuse Large B-Cell Lymphoma, Not Otherwise Specified (DLBCL NOS) Presenting as Multiple Subcutaneous Nodules: An Unusual Cutaneous Presentation of Systemic Disease

<div>Two distinct populations of abnormal B-cells were identified on flow cytometric evaluation of the bone marrow. (a) One population of lambda light chain-restricted CD5-positive B-cells, which appear large on forward scatter, representing the malignant lymphocytes of DLBCL NOS (highlighted in red). (b) A second incidental population of uncertain significance composed of kappa light chain-restricted CD5-positive B-cells that appear of similar size as background lymphocytes by forward scatter and show dim expression of light chain and CD20 (highlighted in red).</div>

Case Reports in Pathology

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Figure 5

Figure 5: Diffuse Large B-Cell Lymphoma, Not Otherwise Specified (DLBCL NOS) Presenting as Multiple Subcutaneous Nodules: An Unusual Cutaneous Presentation of Systemic Disease 

Figure 5 | Diffuse Large B-Cell Lymphoma, Not Otherwise Specified (DLBCL NOS) Presenting as Multiple Subcutaneous Nodules: An Unusual Cutaneous Presentation of Systemic Disease 