The Bottom Line PD-1 expression in the proliferation centers of chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) could be a prognostic marker for aggressive disease.

CLL/SLL lymph node infiltration has a distinctive characteristic, the presence of pseudofollicles or proliferation centers (PCs), which are more rarely described in the white pulp of the spleen ...

Chronic lymphocytic leukemia (CLL) and small lymphocytic lymphoma (SLL) are neoplastic diseases resulting in a clonal proliferation of B cells.

Chronic lymphocytic leukemia/small cell lymphoma (CLL/SLL) is rare, making it difficult to differentiate from other types of lymphoma. A new study helps explain key unique traits.

Chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) typically involves nodal or extranodal tissues as a diffuse proliferation with pseudofollicular growth centers obliterating normal ...