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Mizuno H, Takahagi S, Morita S, Kamegashira A, Tanaka A. Idiopathic Cutaneous Pseudolymphoma Treated Successfully with Hydroxychloroquine: A Case Report and Literature Review. Acta Derm Venereol 2022; 102:adv00798. [DOI: 10.2340/actadv.v102.3201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Abstract is missing (Short Communication)
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Ye CH, Chen CJ, Chang KC, Wu YH, Chen ML, Chiu TM. Cutaneous Pseudolymphoma With Langerhans Cell Hyperplasia-A Rare Case With Clinical Presentation Mimicking Malignancy and Potential Diagnostic Pitfall. Am J Dermatopathol 2021; 43:e280-e284. [PMID: 34001745 DOI: 10.1097/dad.0000000000001984] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
ABSTRACT We describe a rare case of cutaneous pseudolymphoma with Langerhans cell hyperplasia. An 84-year-old female patient presented with erythematous and pernicious-looking plaques on her scalp that had been present for months. Histologically, lymphoid follicles consisting of mixed-type lymphocytes and Langerhans cells were aggregated focally. The diagnosis was verified by several immunohistochemical stains and by clinical evaluation. Skin lesions were steadily resolved with low-dose corticosteroid and hydroxychloroquine.
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Affiliation(s)
- Cian-Hao Ye
- Department of Dermatology, Changhua Christian Hospital, Changhua, Taiwan
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Chih-Jung Chen
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Pathology and Laboratory Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Kung-Chao Chang
- Department of Pathology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Department of Pathology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yu-Hung Wu
- Department of Dermatology, Mackay Memorial Hospital, Taipei, Taiwan
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
| | - Mei-Ling Chen
- Department of Surgical Pathology, Changhua Christian Hospital, Changhua, Taiwan; and
| | - Tsu-Man Chiu
- Department of Dermatology, Changhua Christian Hospital, Changhua, Taiwan
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
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Bardawil T, Khalil S, Kurban M, Abbas O. Diagnostic utility of plasmacytoid dendritic cells in dermatopathology. Indian J Dermatol Venereol Leprol 2021; 87:3-13. [PMID: 33580939 DOI: 10.25259/ijdvl_638_19] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 03/01/2020] [Indexed: 12/11/2022]
Abstract
Differentiating cutaneous diseases that mimic each other clinically and histopathologically can at times be a challenging task for the dermatopathologist. At the same time, differentiation of entities with overlapping features may be crucial for patient management. Although not seen in normal skin, plasmacytoid dendritic cells usually infiltrate the skin in several infectious, inflammatory/autoimmune and neoplastic entities. Plasmacytoid dendritic cells can be identified in tissue using specific markers such as CD123 and/or blood-derived dendritic cell antigen-2. Plasmacytoid dendritic cells are the most potent producers of type I interferons and their activity may therefore be assessed indirectly in tissue using human myxovirus resistance protein A, a surrogate marker for type I interferon production. In recent years, accumulating evidence has established the utility of evaluating for specific plasmacytoid dendritic cell-related parameters (plasmacytoid dendritic cell content, distribution and clustering and/ or human myxovirus resistance protein A expression) as a diagnostic tool in differentiating cutaneous diseases with overlapping features such as the alopecias, lupus and its mimics, and neoplastic entities. In this review, we provide an update on the current evidence on this topic and on the contexts where this can be a useful adjunct to reach the histopathological diagnosis.
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Affiliation(s)
- Tara Bardawil
- Department of Dermatology, American University of Beirut Medical Center, Beirut, Lebanon
| | - Samar Khalil
- Department of Dermatology, American University of Beirut Medical Center, Beirut, Lebanon
| | - Mazen Kurban
- Department of Dermatology, American University of Beirut Medical Center, Beirut, Lebanon
| | - Ossama Abbas
- Department of Dermatology, American University of Beirut Medical Center, Beirut, Lebanon
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Edmonds N, Hernández-Pérez M, Holsinger M, Gru AA. Primary cutaneous follicle center lymphoma in a 16-year-old girl. J Cutan Pathol 2021; 48:663-668. [PMID: 33326136 DOI: 10.1111/cup.13939] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 12/05/2020] [Accepted: 12/12/2020] [Indexed: 12/01/2022]
Abstract
In the pediatric and adolescent age group, primary cutaneous lymphomas are rare, especially cutaneous B-cell lymphomas. According to the World Health Organization, the three main subtypes of primary cutaneous B-cell lymphomas are primary cutaneous marginal zone B-cell lymphoma (PCMZL), primary cutaneous follicle center lymphoma (PCFCL), and primary cutaneous diffuse large B-cell lymphoma, leg type. We present an extraordinary case of PCFCL arising in a 16-year-old female, only the sixth case of PCFCL to be reported in the literature in a patient less than 20 years old. Although PCMZL was considered in this case, the finding of lambda light chain restriction in the BCL-6 and CD10 positive population of lymphocytes established the diagnosis of primary cutaneous follicle center lymphoma. Not many data currently exist on the prognosis of PCFCL in young individuals, but adult PCFCL has a good prognosis with an indolent course and 5-year survival rates over 95%. Because of its uncommon manifestation in young patients, the diagnosis of PCFCL is often delayed or missed. This case is presented to raise awareness of PCFCL in the pediatric/ adolescent population and to contribute to the ongoing research of this condition.
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Affiliation(s)
- Nicole Edmonds
- Department of Pathology, University of Virginia, Charlottesville, Virginia, USA
| | | | | | - Alejandro A Gru
- Department of Pathology, University of Virginia, Charlottesville, Virginia, USA.,Department of Dermatology, University of Virginia, Charlottesville, Virginia, USA
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Chang C, Chen YP, Medeiros LJ, Chen TY, Chang KC. Higher infiltration of intratumoral CD25+ FOXP3+ lymphocytes correlates with a favorable prognosis in patients with diffuse large B-cell lymphoma. Leuk Lymphoma 2020; 62:76-85. [PMID: 32962457 DOI: 10.1080/10428194.2020.1817438] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Regulatory T-cells (Tregs) play an important role in cancer immunity but their prognostic impact is controversial in diffuse large B-cell lymphoma (DLBCL). Intratumoral Tregs in DLBCL (n = 70) were evaluated by double-stained CD25 and FOXP3 lymphocytes in formalin-fixed paraffin-embedded tissues, and correlated with clinicopathologic features. We found that increased numbers of intratumoral FOXP3+ lymphocytes (>2.4/HPF) and CD25 + FOXP3+ lymphocytes (>0.8/HPF) are favorable prognosticators (p = .004 and p < .001, respectively) in DLBCL patients, along with age <70 years, stage I-II disease, normal serum LDH level and low IPI scores (p < .001, .002, .002, and <.001, respectively). On multivariate analyses, a higher number of CD25 + FOXP3+ lymphocytes retained prognostic significance (p = .040). Interestingly, higher Treg infiltration correlated with increased infiltration by cytotoxic T-lymphocytes (γ = 0.294, p = .038) and nodal location (γ = 0.390, p = .004), but not with infiltration by CD123+ plasmacytoid dendritic cells, which were reported to induce Tregs with immune tolerance. Therefore, congruent with literature meta-analyses, higher intratumoral CD25 + FOXP3+ lymphocytes have a beneficial impact on DLBCL.
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Affiliation(s)
- Chen Chang
- Department of Pathology, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan
| | - Ya-Ping Chen
- Department of Internal Medicine, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan
| | - L Jeffrey Medeiros
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Tsai-Yun Chen
- Department of Internal Medicine, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan
| | - Kung-Chao Chang
- Department of Pathology, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan.,Department of Pathology, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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Gibson SE, Swerdlow SH. How I Diagnose Primary Cutaneous Marginal Zone Lymphoma. Am J Clin Pathol 2020; 154:428-449. [PMID: 32808967 DOI: 10.1093/ajcp/aqaa116] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVES Primary cutaneous marginal zone lymphoma (PCMZL) is 1 of the 3 major subtypes of primary cutaneous B-cell lymphoma. The diagnosis of PCMZL may be challenging, as the differential diagnosis includes benign cutaneous lymphoproliferations as well as other primary or secondary cutaneous B-cell or T-cell lymphomas. This review describes our approach to the diagnosis of PCMZL. METHODS Two cases are presented that illustrate how we diagnose each of the 2 subtypes of PCMZL. The clinicopathologic features of PCMZL and the ways in which these cases can be distinguished from both benign and other neoplastic entities are emphasized. RESULTS A definitive diagnosis of PCMZL requires the incorporation of histologic and immunophenotypic features, molecular genetic studies in some cases, and just as importantly, clinical findings. Emerging data suggest that the heavy chain class-switched cases may be more like a clonal chronic lymphoproliferative disorder. CONCLUSIONS The 2 subtypes of PCMZL create different diagnostic challenges and require the use of a multiparameter approach. Although very indolent, it is important to distinguish PCMZLs from reactive proliferations, because they frequently recur and may require antineoplastic therapies. It is also critical to distinguish PCMZLs from other B- or T-cell lymphomas so that patients are properly evaluated and not overtreated.
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Jamali A, Kenyon B, Ortiz G, Abou-Slaybi A, Sendra VG, Harris DL, Hamrah P. Plasmacytoid dendritic cells in the eye. Prog Retin Eye Res 2020; 80:100877. [PMID: 32717378 DOI: 10.1016/j.preteyeres.2020.100877] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 05/28/2020] [Accepted: 06/05/2020] [Indexed: 02/07/2023]
Abstract
Plasmacytoid dendritic cells (pDCs) are a unique subpopulation of immune cells, distinct from classical dendritic cells. pDCs are generated in the bone marrow and following development, they typically home to secondary lymphoid tissues. While peripheral tissues are generally devoid of pDCs during steady state, few tissues, including the lung, kidney, vagina, and in particular ocular tissues harbor resident pDCs. pDCs were originally appreciated for their potential to produce large quantities of type I interferons in viral immunity. Subsequent studies have now unraveled their pivotal role in mediating immune responses, in particular in the induction of tolerance. In this review, we summarize our current knowledge on pDCs in ocular tissues in both mice and humans, in particular in the cornea, limbus, conjunctiva, choroid, retina, and lacrimal gland. Further, we will review our current understanding on the significance of pDCs in ameliorating inflammatory responses during herpes simplex virus keratitis, sterile inflammation, and corneal transplantation. Moreover, we describe their novel and pivotal neuroprotective role, their key function in preserving corneal angiogenic privilege, as well as their potential application as a cell-based therapy for ocular diseases.
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Affiliation(s)
- Arsia Jamali
- Center for Translational Ocular Immunology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA; Department of Ophthalmology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA
| | - Brendan Kenyon
- Center for Translational Ocular Immunology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA; Program in Neuroscience, Graduate School of Biomedical Sciences, Tufts University, Boston, MA, USA
| | - Gustavo Ortiz
- Center for Translational Ocular Immunology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA; Department of Ophthalmology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA
| | - Abdo Abou-Slaybi
- Center for Translational Ocular Immunology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA; Program in Immunology, Graduate School of Biomedical Sciences, Tufts University, Boston, MA, USA
| | - Victor G Sendra
- Center for Translational Ocular Immunology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA; Department of Ophthalmology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA
| | - Deshea L Harris
- Center for Translational Ocular Immunology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA; Department of Ophthalmology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA
| | - Pedram Hamrah
- Center for Translational Ocular Immunology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA; Department of Ophthalmology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA; Program in Neuroscience, Graduate School of Biomedical Sciences, Tufts University, Boston, MA, USA; Program in Immunology, Graduate School of Biomedical Sciences, Tufts University, Boston, MA, USA; Cornea Service, Tufts New England Eye Center, Boston, MA, USA.
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Gru AA, McHargue C, Salavaggione AL. A Systematic Approach to the Cutaneous Lymphoid Infiltrates: A Clinical, Morphologic, and Immunophenotypic Evaluation. Arch Pathol Lab Med 2020; 143:958-979. [PMID: 31339758 DOI: 10.5858/arpa.2018-0294-ra] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
CONTEXT.— The evaluation of cutaneous lymphoid infiltrates, both neoplastic and inflammatory, occurs very frequently in routine dermatopathologic examination and consultation practices. The "tough" cutaneous lymphoid infiltrate is feared by many pathologists; skin biopsies are relatively small, whereas diagnostic possibilities are relatively broad. It is true that cutaneous lymphomas can be difficult to diagnose and that in many circumstances multiple biopsies are required to establish a correct diagnostic interpretation. As a reminder, one should understand that low-grade cutaneous lymphomas are indolent disorders that usually linger for decades and that therapy does not result in disease cure. It is also important to remember that in most circumstances, those patients will die from another process that is completely unrelated to a diagnosis of skin lymphoma (even in the absence of specific therapy). OBJECTIVE.— To use a clinicopathologic, immunophenotypic, and molecular approach in the evaluation of common lymphocytic infiltrates. DATA SOURCES.— An in-depth analysis of updated literature in the field of cutaneous lymphomas was done, with particular emphasis on updated terminology from the most recent World Health Organization classification of skin and hematologic tumors. CONCLUSIONS.— A diagnosis of cutaneous lymphoid infiltrates can be adequately approached using a systematic scheme following the proposed ABCDE system. Overall, cutaneous T- and B-cell lymphomas are rare and "reactive" infiltrates are more common. Evaluation of lymphoid proliferations should start with a good sense of knowledge of the clinical presentation of the lesions, the clinical differential considerations, and a conscientious and appropriate use of immunohistochemistry and molecular tools.
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Affiliation(s)
- Alejandro A Gru
- From the Departments of Pathology (Drs Gru and Salavaggione) and Dermatology (Dr Gru), University of Virginia, Charlottesville; and the Department of Dermatology (Dr McHargue), Henry Ford Health System, Detroit, Michigan
| | - Chauncey McHargue
- From the Departments of Pathology (Drs Gru and Salavaggione) and Dermatology (Dr Gru), University of Virginia, Charlottesville; and the Department of Dermatology (Dr McHargue), Henry Ford Health System, Detroit, Michigan
| | - Andrea L Salavaggione
- From the Departments of Pathology (Drs Gru and Salavaggione) and Dermatology (Dr Gru), University of Virginia, Charlottesville; and the Department of Dermatology (Dr McHargue), Henry Ford Health System, Detroit, Michigan
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Nakamura S, Ponzoni M. Marginal zone B-cell lymphoma: lessons from Western and Eastern diagnostic approaches. Pathology 2019; 52:15-29. [PMID: 31757436 DOI: 10.1016/j.pathol.2019.08.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/23/2019] [Accepted: 08/28/2019] [Indexed: 02/06/2023]
Abstract
Marginal zone B-cell lymphomas (MZLs) are a group of clinically indolent B-cell lymphomas postulated to derive from memory B lymphocytes in the 'marginal zone' of secondary lymphoid tissue. Today, MZL is recognised as a nosological umbrella term encompassing distinct entities with some shared phenotypic and genotypic features, including extranodal marginal zone B-cell lymphoma (EMZL) or mucosa-associated lymphoid tissue (MALT) lymphoma, splenic MZL, and nodal MZL, accounting for approximately 70%, 20%, and 10% of MZLs, respectively. These lymphomas share some phenotypic and genotypic features and have some variants and related provisional diseases, but are different in regards to their clinical and molecular characteristics. In addition, they are frequently associated with chronic antigenic stimulation represented either by infectious agents, particularly bacteria and viruses, or autoimmune diseases as exemplified by Sjögren syndrome, Hashimoto thyroiditis, and newly recognised IgG4-related disease. Furthermore, several chromosomal translocations have been identified in EMZL. In this review, we will focus on the updated histopathological criteria and the main problems with differential diagnoses in order to aid the diagnostic approach in our routine practice.
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Affiliation(s)
- Shigeo Nakamura
- Department of Pathology and Laboratory Medicine, Nagoya University Hospital, Nagoya, Japan.
| | - Maurilio Ponzoni
- Pathology and Lymphoid Malignancies Unit, San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
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Mitteldorf C, Kempf W. Cutaneous pseudolymphoma—A review on the spectrum and a proposal for a new classification. J Cutan Pathol 2019; 47:76-97. [DOI: 10.1111/cup.13532] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 05/26/2019] [Accepted: 06/14/2019] [Indexed: 12/28/2022]
Affiliation(s)
- Christina Mitteldorf
- Department of Dermatology, Venereology and AllergologyUniversity Medical Center Göttingen Germany
| | - Werner Kempf
- Kempf und Pfaltz, Histologische Diagnostik Zürich Switzerland
- Department of DermatologyUniversity Hospital Zurich Zurich Switzerland
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The Histopathological Spectrum of Pseudolymphomatous Infiltrates in Cutaneous Lupus Erythematosus. Am J Dermatopathol 2018; 40:247-253. [DOI: 10.1097/dad.0000000000000942] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
The term, cutaneous pseudolymphoma (PSL), refers to a group of lymphocyte-rich infiltrates, which either clinically and/or histologically simulate cutaneous lymphomas. Clinicopathologic correlation is essential to achieve the final diagnosis in cutaneous PSL and to differentiate it from cutaneous lymphomas. A wide range of causative agents (eg, Borrelia, injections, tattoo, and arthropod bite) has been described. Based on clinical and/or histologic presentation, 4 main groups of cutaneous PSL can be distinguished: (1) nodular PSL, (2) pseudo-mycosis fungoides, (3) other PSLs (representing distinct clinical entities), and (4) intravascular PSL. The article gives an overview of the clinical and histologic characteristics of cutaneous PSLs.
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Affiliation(s)
- Christina Mitteldorf
- Department of Dermatology, HELIOS Klinikum Hildesheim, Senator-Braun-Allee 33, Hildesheim 31134, Germany.
| | - Werner Kempf
- Kempf & Pfaltz, Histologische Diagnostik, Seminarstrasse 1, 8057 Zürich, Zurich, Switzerland; Department of Dermatology, University Hospital Zurich, Gloriastrassse 31, 8091 Zürich, Switzerland
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Abstract
Primary cutaneous marginal zone lymphoma (CMZL) is one of the major primary B-cell lymphomas of skin. Two types are recognized: a more common class-chain switched CMZL, and a much less common IgM+ CMZL. The extremely indolent course, together with other features distinct from most other MALT lymphomas, has led some to question whether at least the class-switched cases should be considered an overt lymphoma.
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Affiliation(s)
- Steven H Swerdlow
- Division of Hematopathology, Department of Pathology, University of Pittsburgh School of Medicine, UPMC-Presbyterian, G-335, 200 Lothrop Street, Pittsburgh, PA 15213.
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Saadeh D, Kurban M, Abbas O. Plasmacytoid dendritic cell role in cutaneous malignancies. J Dermatol Sci 2016; 83:3-9. [PMID: 27236509 DOI: 10.1016/j.jdermsci.2016.05.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 05/06/2016] [Accepted: 05/12/2016] [Indexed: 02/08/2023]
Abstract
Plasmacytoid dendritic cells (pDCs) correspond to a specialized dendritic cell population that exhibit plasma cell morphology, express CD4, CD123, HLA-DR, blood-derived dendritic cell antigen-2 (BDCA-2), and Toll-like receptor (TLR)7 and TLR9 within endosomal compartments. Through their production of type I interferons (IFNs) and other pro-inflammatory cytokines, pDCs provide anti-viral resistance and link the innate and adaptive immunity by controlling the function of myeloid DCs, lymphocytes, and natural killer (NK) cells. While lacking from normal skin, pDCs are usually recruited to the skin in several cutaneous pathologies where they appear to be involved in the pathogenesis of several infectious, inflammatory/autoimmune, and neoplastic entities. Among the latter group, pDCs have the potential to induce anti-tumour immunity; however, the complex interaction of pDCs with tumor cells and their micro-environment appears to contribute to immunologic tolerance. In this review, we aim at highlighting the role played by pDCs in cutaneous malignancies with special emphasis on the underlying mechanisms.
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Affiliation(s)
- Dana Saadeh
- Dermatology Department, American University of Beirut Medical Center, Lebanon
| | - Mazen Kurban
- Dermatology Department, American University of Beirut Medical Center, Lebanon
| | - Ossama Abbas
- Dermatology Department, American University of Beirut Medical Center, Lebanon.
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Lima M. Cutaneous primary B-cell lymphomas: from diagnosis to treatment. An Bras Dermatol 2016; 90:687-706. [PMID: 26560215 PMCID: PMC4631235 DOI: 10.1590/abd1806-4841.20153638] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2014] [Accepted: 06/05/2014] [Indexed: 12/19/2022] Open
Abstract
Primary cutaneous B-cell lymphomas are a heterogeneous group of mature B-cells neoplasms with tropism for the skin, whose biology and clinical course differ significantly from the equivalent nodal lymphomas. The most indolent forms comprise the primary cutaneous marginal zone and follicle center B-cell lymphomas that despite the excellent prognosis have cutaneous recurrences very commonly. The most aggressive forms include the primary cutaneous large B-cell lymphomas, consisting in two major groups: the leg type, with poor prognosis, and others, the latter representing a heterogeneous group of lymphomas from which specific entities are supposed to be individualized over time, such as intravascular large B-cell lymphomas. Treatment may include surgical excision, radiotherapy, antibiotics, corticosteroids, interferon, monoclonal antibodies and chemotherapy, depending on the type of lymphoma and on the type and location of the skin lesions. In subtypes with good prognosis is contraindicated overtreatment and in those associated with a worse prognosis the recommended therapy relies on CHOP-like regimens associated with rituximab, assisted or not with local radiotherapy. We review the primary cutaneous B-cell lymphomas, remembering the diagnostic criteria, differential diagnosis, classification, and prognostic factors and presenting the available therapies.
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Affiliation(s)
- Margarida Lima
- Centro Hospitalar do Porto, Hospital de Santo António, Porto, Portugal
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Dargent JL, Henne S, Pranger D, Balzarini P, Sartenaer D, Bulliard G, Rack K, Facchetti F. Tumor-forming plasmacytoid dendritic cells associated with myeloid neoplasms. Report of a peculiar case with histopathologic features masquerading as lupus erythematosus. J Cutan Pathol 2015; 43:280-6. [DOI: 10.1111/cup.12639] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Revised: 10/04/2015] [Accepted: 10/05/2015] [Indexed: 12/24/2022]
Affiliation(s)
- Jean-Louis Dargent
- Pathology; Institut de Pathologie et de Génétique (IPG); Gosselies Belgium
| | - Stéphanie Henne
- Department of Dermatology; Grand Hôpital de Charleroi (GHDC); Loverval Belgium
| | - Delphine Pranger
- Department of Oncology; Grand Hôpital de Charleroi (GHDC); Charleroi Belgium
| | - Piera Balzarini
- Department of Molecular and Translational Medicine, Section of Pathology, School of Medicine; University of Brescia; Brescia Italy
| | - Daniel Sartenaer
- Pathology; Institut de Pathologie et de Génétique (IPG); Gosselies Belgium
| | - Geneviève Bulliard
- Laboratory of Clinical Biology; Grand Hôpital de Charleroi (GHDC); Charleroi Belgium
| | - Katrina Rack
- Pathology; Institut de Pathologie et de Génétique (IPG); Gosselies Belgium
| | - Fabio Facchetti
- Department of Molecular and Translational Medicine, Section of Pathology, School of Medicine; University of Brescia; Brescia Italy
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18
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Guitart J. Rethinking primary cutaneous marginal zone lymphoma: shifting the focus to the cause of the infiltrate. J Cutan Pathol 2015; 42:600-3. [DOI: 10.1111/cup.12509] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 01/26/2015] [Accepted: 02/01/2015] [Indexed: 12/22/2022]
Affiliation(s)
- Joan Guitart
- Departments of Dermatology and Pathology, Feinberg Medical School; Northwestern University; Chicago IL USA
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Kempf W, Kazakov DV, Hübscher E, Gugerli O, Gerbig AW, Schmid R, Palmedo G, Kutzner H. Cutaneous borreliosis associated with T cell–predominant infiltrates: A diagnostic challenge. J Am Acad Dermatol 2015; 72:683-9. [DOI: 10.1016/j.jaad.2014.12.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 12/07/2014] [Accepted: 12/09/2014] [Indexed: 10/24/2022]
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Ma J, Yu H, Yin X, Cheng M, Shi Q, Yin Z, Nie X, Shouli W, Zhang L. E2-2, a novel immunohistochemical marker for both human and monkey plasmacytoid dendritic cells. BIOPHYSICS REPORTS 2015; 1:139-147. [PMID: 27340692 PMCID: PMC4871903 DOI: 10.1007/s41048-016-0023-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Accepted: 11/18/2015] [Indexed: 11/29/2022] Open
Abstract
Plasmacytoid dendritic cells (pDCs) play important roles in initiating and regulating immune responses. pDC infiltration has been documented in multiple pathological lesions including infections, tumors, and autoimmune diseases, and the severity of pDC infiltration correlates with disease progression. However, a specific antibody for identifying pDCs by immunohistochemical staining on paraffin-embedded tissue sections is still lacking. Here, we developed a novel antibody targeted E2-2, a transcription factor preferentially expressed in pDCs. The antibody stains the nuclei of pDCs specifically in immunohistochemical analysis of various tissues from both human and rhesus monkey. This novel antibody will serve as a beneficial tool for pDC-related basic research and clinical investigation.
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Affiliation(s)
- Jianping Ma
- Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101 China.,University of Chinese Academy of Sciences, Beijing, 100080 China
| | - Haisheng Yu
- Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101 China.,University of Chinese Academy of Sciences, Beijing, 100080 China
| | - Xiangyun Yin
- Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101 China.,University of Chinese Academy of Sciences, Beijing, 100080 China
| | - Menglan Cheng
- Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101 China.,University of Chinese Academy of Sciences, Beijing, 100080 China
| | - Quanxing Shi
- Department of Cardiology, 306th Hospital of PLA, Beijing, 100101 China
| | - Zhao Yin
- Department of Cardiology, 306th Hospital of PLA, Beijing, 100101 China
| | - Xiaohua Nie
- Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101 China
| | - Wang Shouli
- Department of Cardiology, 306th Hospital of PLA, Beijing, 100101 China
| | - Liguo Zhang
- Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101 China
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Goyal A, Moore JB, Gimbel D, Carter JB, Kroshinsky D, Ferry JA, Harris NL, Duncan LM. PD-1, S-100 and CD1a expression in pseudolymphomatous folliculitis, primary cutaneous marginal zone B-cell lymphoma (MALT lymphoma) and cutaneous lymphoid hyperplasia. J Cutan Pathol 2014; 42:6-15. [PMID: 25384543 DOI: 10.1111/cup.12440] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Revised: 09/11/2014] [Accepted: 10/12/2014] [Indexed: 12/21/2022]
Abstract
BACKGROUND Pseudolymphomatous folliculitis is a lymphoid proliferation that clinically and histopathologically mimics primary cutaneous extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma). In this study, we assessed the diagnostic value of three immunohistochemical markers, programmed death-1 (PD-1), CD1a and S100. METHODS We evaluated 25 cases of cutaneous lymphoid proliferations with established diagnoses, including 9 patients with pseudolymphomatous folliculitis, 11 with MALT lymphoma, and 5 with cutaneous lymphoid hyperplasia (CLH). The clinical, histopathologic and immunohistochemical characteristics were reviewed and three major characteristics assessed: (a) proportion of T cells expressing PD-1, (b) pattern of expression of CD1a by dendritic cells and (c) pattern of expression of S100 by dendritic cells. RESULTS We found pseudolymphomatous folliculitis to have a significant increase in PD-1+ T cells compared with MALT lymphoma (p < 0.0001). The pattern of CD1a staining is also informative: MALT lymphoma is significantly more likely to demonstrate a peripheral concentration of CD1a+ dendritic cells around lymphoid nodules than pseudolymphomatous folliculitis (p < 0.0003) or CLH (p < 0.05). Pseudolymphomatous folliculitis demonstrates an interstitial distribution of CD1a+ cells more often than MALT lymphoma (p < 0.04). S100 staining was not a helpful discriminator. CONCLUSIONS Histopathologic factors including PD-1 and CD1a staining patterns may allow for more certainty in distinguishing lymphoid hyperplasia, including pseudolymphomatous folliculitis, from MALT lymphoma.
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Affiliation(s)
- Amrita Goyal
- Dermatopathology Unit, Massachusetts General Hospital, Boston, MA, USA
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Cutaneous lymphomas: an update. Part 2: B-cell lymphomas and related conditions. Am J Dermatopathol 2014; 36:197-208; quiz 209-10. [PMID: 24658377 DOI: 10.1097/dad.0b013e318289b20e] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
: Primary cutaneous B-cell lymphomas (PCBCL) are the second most common form of primary cutaneous lymphomas and account for approximately 25%-30% of all primary cutaneous lymphomas. Both forms of low-grade malignant PCBCL, primary cutaneous follicle center lymphoma (PCFCL) and primary cutaneous marginal zone lymphoma of mucosa-associated lymphoid tissue-type (MALT lymphoma) (PCMZL) represent the vast majority of PCBCL and show an indolent slowly progressive course and an excellent prognosis despite a high recurrence rate. Genetic analysis indicates that PCMZL differ from other forms of extranodal MALT lymphomas. The more common class-switched and the non-class-switched form of PCMZL can be distinguished as two distinctive subsets that differ in the cellular composition, IgM expression, and biological behavior with extracutaneous involvement found in the non-class-switched form. Recently, unusual clinical and histological forms of PCMZL and PCFCL manifesting with miliary or agminated lesions have been described that are diagnostically challenging. In contrast to PCMZL and PCFCL, primary cutaneous diffuse large B-cell lymphoma, leg type, and other rare forms of large B-cell lymphomas such as intravascular large B-cell lymphoma have an unfavorable prognosis. There is an emerging group of Epstein-Barr virus (EBV)-driven B-cell lymphoproliferations including posttransplant lymphoproliferative disorders and mucocutaneous ulcer occurring in immunocompromised patients and EBV-associated diffuse large B-cell lymphoma of the elderly arising in the setting of senescence-linked immunodeficiency. This review reports on recent findings expanding the spectrum of clinicopathological features, differential diagnostic aspects, and the pathogenesis of PCBCL and discusses the group of EBV-associated B-cell lymphoproliferations involving the skin.
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Sang A, Zheng YY, Yin Y, Dozmorov I, Li H, Hsu HC, Mountz JD, Morel L. Dysregulated cytokine production by dendritic cells modulates B cell responses in the NZM2410 mouse model of lupus. PLoS One 2014; 9:e102151. [PMID: 25093822 PMCID: PMC4122346 DOI: 10.1371/journal.pone.0102151] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Accepted: 06/16/2014] [Indexed: 01/18/2023] Open
Abstract
The breakdown in tolerance of autoreactive B cells in the lupus-prone NZM2410-derived B6.Sle1.Sle2.Sle3 (TC) mice results in the secretion of autoantibodies. TC dendritic cells (DCs) enhance B cell proliferation and antibody secretion in a cytokine-dependent manner. However, the specific cytokine milieu by which TC DCs activate B cells was not known. In this study, we compared TC and C57BL/6 (B6) control for the distribution of DC subsets and for their production of cytokines affecting B cell responses. We show that TC DCs enhanced B cell proliferation through the production of IL-6 and IFN-γ, while antibody secretion was only dependent on IL-6. Pre-disease TC mice showed an expanded PDCA1(+) cells prior to disease onset that was localized to the marginal zone and further expanded with age. The presence of PDCA1(+) cells in the marginal zone correlated with a Type I Interferon (IFN) signature in marginal zone B cells, and this response was higher in TC than B6 mice. In vivo administration of anti-chromatin immune complexes upregulated IL-6 and IFN-γ production by splenic DCs from TC but not B6 mice. The production of BAFF and APRIL was decreased upon TC DC stimulation both in vitro and in vivo, indicating that these B cell survival factors do not play a role in B cell modulation by TC DCs. Finally, TC B cells were defective at downregulating IL-6 expression in response to anti-inflammatory apoptotic cell exposure. Overall, these results show that the TC autoimmune genetic background induces the production of B cell-modulating inflammatory cytokines by DCs, which are regulated by the microenvironment as well as the interplay between DC.
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Affiliation(s)
- Allison Sang
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, Florida, United States of America
| | - Ying-Yi Zheng
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, Florida, United States of America
| | - Yiming Yin
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, Florida, United States of America
| | - Igor Dozmorov
- Department of Immunology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Hao Li
- Clinical Immunology and Rheumatology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Hui-Chen Hsu
- Clinical Immunology and Rheumatology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - John D. Mountz
- Clinical Immunology and Rheumatology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Laurence Morel
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, Florida, United States of America
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Abstract
B-cell lymphomas occurring in the skin often tend to be of systemic origin with secondary cutaneous involvement. Primary cutaneous B-cell lymphomas tend to be indolent disorders, with the exception of primary cutaneous diffuse large B-cell lymphoma-leg type (PCDLBCL-LT). In indolent conditions, the distinction between cutaneous lymphoma and cutaneous lymphoid hyperplasia can be difficult. Integration of all available information, including the clinical setting, is crucial to arriving at the appropriate diagnosis. In this review, we cover the diagnostic approaches to primary cutaneous marginal zone lymphoma, primary cutaneous follicle center lymphoma, and PCDLBCL-LT, and discuss their differential diagnosis.
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Affiliation(s)
- Uma Sundram
- Department of Pathology, Stanford Hospital and Clinics, 300 Pasteur Drive Room H2117, Stanford, CA 94305, USA; Department of Dermatology, Stanford Hospital and Clinics, 450 Broadway, Pavilion B 4th Floor, Redwood City, CA 94063, USA.
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Mitteldorf C, Bieri M, Wey N, Kerl K, Kamarachev J, Pfaltz M, Kutzner H, Roncador G, Tomasini D, Kempf W. Expression of programmed death-1 (CD279) in primary cutaneous B-cell lymphomas with correlation to lymphoma entities and biological behaviour. Br J Dermatol 2013; 169:1212-8. [DOI: 10.1111/bjd.12579] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/01/2013] [Indexed: 12/12/2022]
Affiliation(s)
- C. Mitteldorf
- Department of Dermatology; Klinikum Hildesheim GmbH; Hildesheim Germany
| | - M. Bieri
- Department of Pathology; University Hospital Zürich; Zürich Switzerland
| | - N. Wey
- Department of Pathology; University Hospital Zürich; Zürich Switzerland
| | - K. Kerl
- Department of Dermatology; University Hospital Zürich; Zürich Switzerland
| | - J. Kamarachev
- Department of Dermatology; University Hospital Zürich; Zürich Switzerland
| | - M. Pfaltz
- Department of Psychiatry and Psychotherapy; University Hospital Zürich; Zürich Switzerland
- Kempf und Pfaltz; Histologische Diagnostik; Research Unit; Seminarstrasse 1 CH-8042 Zürich Switzerland
| | - H. Kutzner
- Dermatopathologie Friedrichshafen Bodensee; Friedrichshafen Germany
| | - G. Roncador
- Centro Nacional de Investigaciones Oncologicas; Madrid Spain
| | - D. Tomasini
- Department of Dermatology; Hospital of Busto Arsizio; Busto Arsizio Italy
| | - W. Kempf
- Department of Dermatology; University Hospital Zürich; Zürich Switzerland
- Kempf und Pfaltz; Histologische Diagnostik; Research Unit; Seminarstrasse 1 CH-8042 Zürich Switzerland
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Wobser M, Kerstan A, Kneitz H, Goebeler M, Kunzmann V, Rosenwald A, Geissinger E. Primary cutaneous marginal zone lymphoma with sequential development of nodal marginal zone lymphoma in a patient with selective immunoglobulin A deficiency. J Cutan Pathol 2013; 40:1035-41. [PMID: 24274426 DOI: 10.1111/cup.12230] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Revised: 08/06/2013] [Accepted: 09/03/2013] [Indexed: 12/22/2022]
Abstract
Multiple lymphoma subtypes occurring within one patient is rare in the context of B-cell lymphoma, and only few such cases have been reported in association with primary cutaneous marginal zone lymphoma (PCMZL). We herein describe the case of a 43-year-old patient who was diagnosed with PCMZL and subsequently developed a clonally unrelated nodal marginal zone lymphoma (MZL). At the time of diagnosis of PCMZL, multiple skin lesions were present. The atypical lymphoid infiltrate showed monotypic expression of immunoglobulin light chain lambda and heavy chain (IgM) on immunohistochemistry and an identical B-cell clone. No sign of systemic lymphoma was present in staging examinations. Complete remission was achieved utilizing rituximab. After a 3-year clinical course of repetitive cutaneous relapses and remissions, the patient additionally developed nodal lymphoma involvement by MZL which, however, harbored an immunophenotype and a genetic clone distinct from the cutaneous lymphoma counterpart. Therefore, the rare occurrence of two different types of MZL with sequential evolution was diagnosed. In this uncommon case, we hypothesize that selective immunoglobulin A deficiency may play a promoting role for the metachronous development of the two MZL that occurred in our patient.
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Affiliation(s)
- Marion Wobser
- Department of Dermatology, University Clinic Wuerzburg, Wuerzburg, Germany
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28
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Liau JY, Chuang SS, Chu CY, Ku WH, Tsai JH, Shih TF. The presence of clusters of plasmacytoid dendritic cells is a helpful feature for differentiating lupus panniculitis from subcutaneous panniculitis-like T-cell lymphoma. Histopathology 2013; 62:1057-66. [DOI: 10.1111/his.12105] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Accepted: 01/28/2013] [Indexed: 11/29/2022]
Affiliation(s)
- Jau-Yu Liau
- Department of Pathology; College of Medicine; National Taiwan University Hospital; National Taiwan University; Taipei; Taiwan
| | - Shih-Sung Chuang
- Department of Pathology; Chi-Mei Medical Centre; Tainan and Taipei Medical University; Taipei; Taiwan
| | - Chia-Yu Chu
- Department of Dermatology; College of Medicine; National Taiwan University Hospital; National Taiwan University; Taipei; Taiwan
| | - Wen-Hui Ku
- Department of Pathology and Laboratory Medicine; Koo Foundation; Sun Yat-Sen Cancer Centre; Taipei; Taiwan
| | - Jia-Huei Tsai
- Department of Pathology; College of Medicine; National Taiwan University Hospital; National Taiwan University; Taipei; Taiwan
| | - Teng-Fu Shih
- Department of Pathology; Yuan's General Hospital; Kaohsiung; Taiwan
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Lobular Panniculitis due to Borrelia burgdorferi Infection Mimicking Subcutaneous Panniculitis-Like T-Cell Lymphoma. Am J Dermatopathol 2013; 35:e30-3. [DOI: 10.1097/dad.0b013e31827132cb] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Swerdlow SH, Quintanilla-Martinez L, Willemze R, Kinney MC. Cutaneous B-cell lymphoproliferative disorders: report of the 2011 Society for Hematopathology/European Association for Haematopathology workshop. Am J Clin Pathol 2013; 139:515-35. [PMID: 23525619 DOI: 10.1309/ajcpnlc9nc9wtqyy] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
The diagnosis and classification of the cutaneous B-cell lymphomas can be quite a challenge, with a definitive diagnosis sometimes being elusive, even when an extensive workup has been performed. Distinction of benign from neoplastic disorders can be difficult, with some hyperplasias mimicking lymphomas and vice versa. There are only a limited number of skin-specific B-cell lymphomas, including primary cutaneous follicle center lymphoma and primary cutaneous diffuse large B-cell lymphoma, leg type. Cutaneous marginal zone lymphomas have distinctive features but are classified with the other mucosa-associated lymphoid tissue lymphomas. It is important, however, to also remember that many other B-cell lymphomas/ plasma cell neoplasms can primarily, or more often secondarily, involve the skin. Some may mimic one of the skin-specific lymphomas but have very different clinical implications. Iatrogenic and senescent immunodeficiency-associated lymphoproliferative disorders that are often Epstein-Barr virus (EBV) positive can also primarily involve the skin, including cases also known as EBV-positive mucocutaneous ulcer.
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Affiliation(s)
- Steven H. Swerdlow
- Department of Pathology, Division of Hematopathology, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | | | - Rein Willemze
- Department of Dermatology, Leiden University Medical Center, Leiden, the Netherlands
| | - Marsha C. Kinney
- Department of Pathology, University of Texas Health Science Center, San Antonio, TX
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Posttransplant lymphoproliferative disorders. Adv Hematol 2012; 2012:230173. [PMID: 22570658 PMCID: PMC3337580 DOI: 10.1155/2012/230173] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2011] [Accepted: 01/24/2012] [Indexed: 12/04/2022] Open
Abstract
Posttransplant lymphoproliferative disorders (PTLDs) are a group of diseases that range from benign polyclonal to malignant monoclonal lymphoid proliferations. They arise secondary to treatment with immunosuppressive drugs given to prevent transplant rejection. Three main pathologic subsets/stages of evolution are recognised: early, polymorphic, and monomorphic lesions. The pathogenesis of PTLDs seems to be multifactorial. Among possible infective aetiologies, the role of EBV has been studied in depth, and the virus is thought to play a central role in driving the proliferation of EBV-infected B cells that leads to subsequent development of the lymphoproliferative disorder. It is apparent, however, that EBV is not solely responsible for the “neoplastic” state. Accumulated genetic alterations of oncogenes and tumour suppressor genes (deletions, mutations, rearrangements, and amplifications) and epigenetic changes (aberrant hypermethylation) that involve tumour suppressor genes are integral to the pathogenesis. Antigenic stimulation also plays an evident role in the pathogenesis of PTLDs. Plasmacytoid dendritic cells (PDCs) that are critical to fight viral infections have been thought to play a pathogenetically relevant role in PTLDs. Furthermore, regulatory T cells (Treg cells), which are modulators of immune reactions once incited, seem to have an important role in PTLDs where antigenic stimulation is key for the pathogenesis.
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Fernandez-Flores A. Comments on cutaneous lymphomas: since the WHO-2008 classification to present. Am J Dermatopathol 2011; 34:274-84. [PMID: 22126841 DOI: 10.1097/dad.0b013e31821b8bfe] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The last classification of lymphomas of the World Health Organization in 2008 made a few changes from the preceding classification. Although useful, at the same time, it has posed new questions, concerns, and dilemmas which have been raised in the literature. The current report highlights some of these controversies, of each of these primary cutaneous entities, going through cutaneous mature T-cell and NK-cell neoplasms, mature B-cell neoplasms, precursor neoplasms, and other entities, which for several reasons do not fit in the previous categories. It also reviews some advances on many of these lymphomas published in the last 2 years.
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Ibrahim HAH, Menasce L, Pomplun S, Burke M, Bower M, Naresh KN. Tumour infiltrating plasmacytoid dendritic cells in B cell post-transplant lymphoproliferative disorders, human immunodeficiency virus-associated B cell lymphomas and immune competent diffuse large B cell lymphomas. Histopathology 2011; 59:152-6. [PMID: 21771035 DOI: 10.1111/j.1365-2559.2011.03872.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
MESH Headings
- Adolescent
- Adult
- Aged
- Aged, 80 and over
- B-Lymphocytes/immunology
- B-Lymphocytes/pathology
- Child
- Child, Preschool
- Dendritic Cells/immunology
- Dendritic Cells/pathology
- Female
- Humans
- Immunocompetence
- Immunohistochemistry
- Interleukin-3 Receptor alpha Subunit/metabolism
- Lectins, C-Type/metabolism
- Lymphoma, AIDS-Related/immunology
- Lymphoma, AIDS-Related/pathology
- Lymphoma, Large B-Cell, Diffuse/immunology
- Lymphoma, Large B-Cell, Diffuse/pathology
- Lymphoproliferative Disorders/etiology
- Lymphoproliferative Disorders/immunology
- Lymphoproliferative Disorders/pathology
- Male
- Membrane Glycoproteins/metabolism
- Middle Aged
- Receptors, Immunologic/metabolism
- Transplants/adverse effects
- Young Adult
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Christie LJ, MacKenzie C, Palmer TJ, Baker L, Goodlad JR. Type and maturational status of dendritic cells in cutaneous B cell lymphoproliferative disorders. Histopathology 2011; 59:421-32. [DOI: 10.1111/j.1365-2559.2011.03967.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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35
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Vermi W, Soncini M, Melocchi L, Sozzani S, Facchetti F. Plasmacytoid dendritic cells and cancer. J Leukoc Biol 2011; 90:681-90. [PMID: 21730085 DOI: 10.1189/jlb.0411190] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Cancer develops in a complex microenvironment comprising cancer cells, stromal cells, and host immune cells with their soluble products. The counteracting host-protective and tumor-promoting roles of different immune cell populations have been elegantly clarified in the last decade by pertinent genetically modified mouse models. Among cells with a potential role in cancer immunity, PDCs might represent important players as a result of their capacity to bring together innate and adaptive immunity. This review summarizes current knowledge about the role of PDCs in cancer immunity. PDCs have been documented in primary and metastatic human neoplasms; however, the clinical significance of this finding is still unknown. Once into the tumor bed, PDCs can be hijacked by the tumor microenvironment and lose their propensity to produce the required amount of endogenous I-IFN. However, when properly reprogrammed (i.e., by TLR agonists), PDCs might mediate tumor rejection in a clinical setting. Tumor rejection, at least partially, is driven by I-IFN and seems to require a cross-talk with other innate immune cells, including IFN DCs. The latter evidence, although still limited to skin cancers, can provide a leading model for developing adjuvant immune therapy for other neoplasms. To this end, the generation of appropriate mouse models to modulate the frequency and activation state of murine PDCs will also be of remarkable importance.
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Affiliation(s)
- William Vermi
- Department of Pathology, University of Brescia, Brescia, Italy.
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Abstract
Oral lesions are frequent complications of systemic lupus erythematosus, but only ulceration is included in the 1982 American College of Rheumatology revised criteria. Because the lack of a uniform classification, a range of ulcerative and keratotic lesions are typically described. In this report we describe a unique progressive irregularly cobblestoned and vegetating plaque of the oral mucosa with clinical and histological features mimicking a cutaneous lymphoma. Despite the papillomatous and extensive nature of the lesions and the dense lymphoid infiltrate with follicle formation suggesting a malignant lymphoproliferative process, the slow progression coupled with a mixed cell infiltrate and polyclonality supported a diagnosis of pseudolymphoma. Recognition of this entity is important to prevent diagnosing them as a malignant lymphoma. As well as with the other mucosal lesions in lupus erythematosus, this pseudolymphomatous variant should be added to the disease spectrum.
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Yoo C, Hong YS, Cho BK, Kim SH, Shim SI, Kang CS. Distribution of Dendritic Cells and Regulatory T-Cells in Cutaneous Lymphomas. KOREAN JOURNAL OF PATHOLOGY 2010. [DOI: 10.4132/koreanjpathol.2010.44.6.581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Changyoung Yoo
- Department of Hospital Pathology, St. Vincent's Hospital, Suwon, Korea
| | - Young Seon Hong
- Department of Internal Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Baik Kee Cho
- Department of Dermatology, Yeouido St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Sang Ho Kim
- Department of Pathology, Songeui Campus, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Sang In Shim
- Department of Hospital Pathology, Yeouido St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Chang Suk Kang
- Department of Hospital Pathology, Yeouido St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
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