The most common type of non-Hodgkin lymphoma. It includes the most frequently seen morphologic variants which are: diffuse large B-cell lymphoma, follicular lymphoma, small lymphocytic lymphoma and marginal zone B-cell lymphoma. -- 2003. The disease is B-cell non-Hodgkin lymphoma (MONDO_0015759, a Monarch Disease Ontology entry). Also known as: B-cell NHL, B-cell lymphoma, B-cell non Hodgkin's lymphoma, B-cell non-Hodgkin's lymphoma, lymphomas non-Hodgkin's B-cell, non-Hodgkin's B-cell lymphoma, non-Hodgkin's lymphoma B-cell.