NCIt definition : 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.;
Alternative definition : NCI-GLOSS: A type of cancer that forms in B cells (a type of immune system cell).
B-cell lymphomas usually occur in adults and may be either indolent (slow-growing)
or aggressive (fast-growing). There are many different types of B-cell lymphomas,
and prognosis and treatment depend on the type and stage of cancer.;