|
1
|
Kelley JT, Brown NA, Hristov AC, Bresler SC. Primary cutaneous follicle center lymphoma with extensive plasmacytic differentiation and t(14;18) in both the lymphoid and plasma cell components. J Cutan Pathol 2021; 48:969-974. [PMID: 33786907 DOI: 10.1111/cup.14020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/16/2021] [Accepted: 03/24/2021] [Indexed: 12/11/2022]
Abstract
Primary cutaneous follicle center lymphoma (PCFCL) is the most common cutaneous B-cell lymphoma. The typical immunophenotype includes expression of both CD20 and BCL6, with the majority of cases lacking expression of CD10, BCL2, and the characteristic t(14;18)/IGH-BCL2 rearrangement seen in systemic follicular lymphoma (FL). Plasmacytic differentiation (PD) is an uncommon finding in both systemic and cutaneous FLs and presents a diagnostic challenge when present, leading to the potential for misdiagnosis as marginal zone lymphoma (MZL). Limited reports have described light chain restriction in the plasma cell component of FLs with PD, and rare cases of PCFCL with PD have been described. While the IGH-BCL2 translocation has been identified in a subset of FLs with PD, the presence of the BCL2 translocation in monotypic plasma cells of PCFCL has not been previously described to our knowledge. Here, we report a case of PCFCL with extensive PD in a 77-year-old woman that was favored to represent primary cutaneous MZL on an initial punch biopsy. Excisional biopsy, however, revealed that the atypical lymphocytes expressed CD10, BCL6, and BCL2, while the plasma cell component demonstrated light-chain lambda restriction. FISH studies showed the presence of an IGH-BCL2 translocation in both the lymphocytic and plasmacytic components.
Collapse
Affiliation(s)
- Justin T Kelley
- Department of Pathology, Michigan Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Noah A Brown
- Department of Pathology, Michigan Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Alexandra C Hristov
- Department of Pathology, Michigan Medicine, University of Michigan, Ann Arbor, Michigan, USA.,Department of Dermatology, Michigan Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Scott C Bresler
- Department of Pathology, Michigan Medicine, University of Michigan, Ann Arbor, Michigan, USA.,Department of Dermatology, Michigan Medicine, University of Michigan, Ann Arbor, Michigan, USA
| |
Collapse
|
|
2
|
Skala SL, Harms PW, Fullen DR, Brown NA, Tejasvi T, Wilcox RA, Boyer DF, Hristov AC. Cutaneous follicle center lymphomas with plasmacytic differentiation. J Cutan Pathol 2020; 48:632-636. [PMID: 33184902 DOI: 10.1111/cup.13917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 10/11/2020] [Accepted: 10/25/2020] [Indexed: 11/28/2022]
Abstract
Follicle center lymphomas, including primary cutaneous follicle center lymphoma (PCFCL), may rarely show plasmacytic differentiation. Such cases can pose a diagnostic challenge and can be mistaken for other lymphomas that more commonly include plasma cells. Here, we report four cases of PCFCL and one case of systemic follicular lymphoma involving the skin with associated monotypic plasma cells, including the clinical, morphologic and immunophenotypic features.
Collapse
Affiliation(s)
- Stephanie L Skala
- Department of Pathology, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Paul W Harms
- Department of Pathology, Michigan Medicine, Ann Arbor, Michigan, USA.,Department of Dermatology, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Douglas R Fullen
- Department of Pathology, Michigan Medicine, Ann Arbor, Michigan, USA.,Department of Dermatology, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Noah A Brown
- Department of Pathology, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Trilokraj Tejasvi
- Department of Dermatology, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Ryan A Wilcox
- Department of Internal Medicine, Division of Hematology and Oncology, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Daniel F Boyer
- Department of Pathology, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Alexandra C Hristov
- Department of Pathology, Michigan Medicine, Ann Arbor, Michigan, USA.,Department of Dermatology, Michigan Medicine, Ann Arbor, Michigan, USA
| |
Collapse
|
|
4
|
Gru AA, Hussaini M, Nguyen T, Frater JL, Kreisel F, Hassan A. High prevalence of 1p36 microdeletions in B-cell non-Hodgkin lymphomas (NHL) is associated with PAX7 loss. Int J Lab Hematol 2012. [PMID: 23205730 DOI: 10.1111/ijlh.12034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
|
5
|
Koga M, Koga K, Imafuku S, Nakayama J. Primary cutaneous follicle centre lymphoma with atypical morphological features on hematoxylin-eosin stained images. J Dermatol 2011; 39:748-9. [PMID: 22077424 DOI: 10.1111/j.1346-8138.2011.01375.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|