Follicular lymphoma with progression to diffuse large B-cell lymphoma and concurrent CD5-negative mantle cell lymphoma-3 entities in a lymph node.
作者:
Trimaldi(Janese A),Bowers(Jeremy W),Bello(Celeste),Sagatys(Elizabeth M)
状态:
发布时间2014-06-24
, 更新时间 2014-06-24
期刊:
Cancer Control
摘要:
A 68-year-old woman with a history of follicular lymphoma had pathological findings of grade 3B follicular lymphoma, mantle cell lymphoma (MCL), and diffuse large B-cell lymphoma (DLBCL) identified in 1 lymph node. The DLBCL appeared to be a transformation of the follicular lymphoma. The nodules were diffusely and strongly positive for CD20, BCL6, and BCL2. CD43 highlighted smaller lymphocytes in a fraction of the nodules. BCL1 staining was variable with a mixture of nodular and mantle zone patterns. The diffuse areas showed weaker positivity for CD10, BCL2, and BCL6. CD3 and CD5 highlighted intermixed T cells. The Ki-67 proliferative index was overall estimated to be 60%. Fluorescent in situ hybridization performed on the lymph node was positive for CCND1/IGH. The patterns of BCL1 and BCL6 staining demonstrated 2 separate populations of neoplastic B lymphocytes.