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Aggressive Cutaneous Lymphomas and Their Mimics. Surg Pathol Clin 2023; 16:361-383. [PMID: 37149363 DOI: 10.1016/j.path.2023.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Abstract
Cutaneous lymphomas encompass a heterogeneous group of neoplasms with a wide spectrum of clinical presentations, histopathologic features, and prognosis. Because there are overlapping pathologic features among indolent and aggressive forms and with systemic lymphomas that involve the skin, clinicopathologic correlation is essential. Herein, the clinical and histopathologic features of aggressive cutaneous B- and T-cell lymphomas are reviewed. Indolent cutaneous lymphomas/lymphoproliferative disorders, systemic lymphomas, and reactive processes that may mimic these entities are also discussed. This article highlights distinctive clinical and histopathologic features, increases awareness of rare entities, and presents new and evolving developments in the field.
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Alberti-Violetti S, Maronese CA, Venegoni L, Merlo V, Berti E. Primary Cutaneous Gamma-Delta T Cell Lymphomas: A Case Series and Overview of the Literature. Dermatopathology (Basel) 2021; 8:515-524. [PMID: 34842638 PMCID: PMC8628721 DOI: 10.3390/dermatopathology8040054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 11/09/2021] [Accepted: 11/11/2021] [Indexed: 11/17/2022] Open
Abstract
Primary cutaneous gamma-delta T cell lymphomas (PCGDTCLs) are rare and aggressive cutaneous malignancies that have been diagnostically challenging for dermopathologists and clinicians since their first published descriptions in 1991. Since then, the availability of immunostaining for T cell receptors γ and δ in formalin-fixed paraffin-embedded samples has greatly increased our knowledge of the gamma-delta phenotype by showing that it may also be present in the context of indolent entities, such as mycosis fungoides (MFs) and lymphomatoid papulosis, and this has raised questions concerning its diagnostic and prognostic implications. We here describe the histological and clinical differences between the dermo-epidermal and subcutaneous sub-groups of PCGDTCL observed in a cohort of 20 patients attending a single experienced centre, with particular focus on cases with an MF-like presentation, which are still less well defined than those of classic MF.
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Affiliation(s)
- Silvia Alberti-Violetti
- UOC Dermatologia, Fondazione IRCCS Ca’ Granda, Ospedale Maggiore Policlinico, 20122 Milan, Italy; (C.A.M.); (V.M.); (E.B.)
- Department of Pathophysiology and Transplantation, University of Milan, 20122 Milan, Italy;
| | - Carlo Alberto Maronese
- UOC Dermatologia, Fondazione IRCCS Ca’ Granda, Ospedale Maggiore Policlinico, 20122 Milan, Italy; (C.A.M.); (V.M.); (E.B.)
- Department of Pathophysiology and Transplantation, University of Milan, 20122 Milan, Italy;
| | - Luigia Venegoni
- Department of Pathophysiology and Transplantation, University of Milan, 20122 Milan, Italy;
| | - Valentina Merlo
- UOC Dermatologia, Fondazione IRCCS Ca’ Granda, Ospedale Maggiore Policlinico, 20122 Milan, Italy; (C.A.M.); (V.M.); (E.B.)
| | - Emilio Berti
- UOC Dermatologia, Fondazione IRCCS Ca’ Granda, Ospedale Maggiore Policlinico, 20122 Milan, Italy; (C.A.M.); (V.M.); (E.B.)
- Department of Pathophysiology and Transplantation, University of Milan, 20122 Milan, Italy;
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Stoll JR, Willner J, Oh Y, Pulitzer M, Moskowitz A, Horwitz S, Myskowski P, Noor SJ. Primary cutaneous T-cell lymphomas other than Mycosis Fungoides and Sezary Syndrome - Part I: Clinical and histologic features and diagnosis. J Am Acad Dermatol 2021; 85:1073-1090. [PMID: 33940098 DOI: 10.1016/j.jaad.2021.04.080] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/12/2021] [Accepted: 04/26/2021] [Indexed: 11/11/2022]
Abstract
Primary cutaneous T-cell lymphomas (CTCLs) are defined as lymphomas with a T-cell phenotype that present in the skin without evidence of systemic or extracutaneous disease at initial presentation. CTCLs other than Mycosis Fungoides (MF) and Sézary syndrome (SS) account for approximately one-third of CTCLs and encompass a heterogenous group of non-Hodgkin lymphomas ranging from indolent lymphoproliferative disorders to aggressive malignancies with a poor prognosis. The spectrum of CTCLs continues to broaden as new provisional entities are classified. Given the morphologic and histologic overlap among CTCLs and other diagnoses, a thorough clinical history, physical evaluation, and clinicopathologic correlation are essential in the workup and diagnosis of these rare entities. This article will summarize the epidemiologic, clinical, pathologic, and diagnostic features of CTCLs other than MF and SS.
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Affiliation(s)
| | | | - Yuna Oh
- Memorial Sloan Kettering Cancer Center, New York, NY
| | | | | | | | | | - Sarah J Noor
- Memorial Sloan Kettering Cancer Center, New York, NY.
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Two cases of phenotypic switch of primary cutaneous T cell lymphoma after treatment with an aggressive course and review of the literature. Virchows Arch 2019; 475:637-648. [DOI: 10.1007/s00428-019-02599-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 05/07/2019] [Accepted: 06/03/2019] [Indexed: 10/26/2022]
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Pulitzer M, Geller S, Kumar E, Frosina D, Moskowitz A, Horwitz S, Myskowski P, Kheterpal M, Chan A, Dogan A, Jungbluth A. T-cell receptor-δ expression and γδ+ T-cell infiltrates in primary cutaneous γδ T-cell lymphoma and other cutaneous T-cell lymphoproliferative disorders. Histopathology 2018; 73:653-662. [PMID: 29893430 DOI: 10.1111/his.13671] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 06/10/2018] [Indexed: 01/16/2023]
Abstract
AIMS The diagnosis of cutaneous γδ T-cell lymphoma (GDTCL) requires the identification of γδ chains of the T-cell receptor (TCR). Our aim in this study was, by using a new monoclonal antibody (mAb) against TCRδ, to evaluate TCRδ expression in formalin-fixed paraffin-embedded (FFPE) skin tissue from TCRγ+ cutaneous T-cell lymphoma (CTCL), and to assess TCRδ expression within a spectrum of other cutaneous lymphoproliferative disorders (CLPDs). METHODS AND RESULTS Twelve cases (10 patients) with TCRγ+ CTCL and 132 additional CLPD cases (127 patients) were examined, including mycosis fungoides (MF) (n = 60), cutaneous GDTCL (n = 15), subcutaneous panniculitis-like T-cell lymphoma (SPTCL) (n = 11), and CD30+ lymphoproliferative disorder (LPD) (n = 24). Clone H-41 against TCRδ was used on a Leica Bond-3 automated stainer to label FFPE slides. H-41 immunostaining was graded as percentage infiltrate: high (50-100%), moderate (10-49%), and low (0-9%). In TCRγ+ tumours, 12 of 12 (100%) patients showed TCRδ expression comparable to TCRγ expression. No (0%) TCRγ+ cases were negative for TCRδ. In all CLPDs, TCRδ expression was as follows: GDTCL, 16 of 20 cases (14 of 15 patients) high, two moderate, and two low; MF, 0 of 60 cases high, nine moderate, and 51 low; CD30+ LPD, one of 24 cases high, two moderate, and 21 low; and SPTCL, 0 of 11 cases (0 of 9 patients) high, two moderate, and two low. Three MF-like cases and one SPTCL-like case showed high expression; the remainder showed low expression. CONCLUSIONS mAb H-41 against TCRδ matches TCRγ in immunostaining FFPE tissues from GDTCL, supporting H-41 as a replacement for mAb γ3.20. TCRδ expression in our study suggests that the true occurrence of γδ+ non-GDTCL CTCL/CLPD may be lower than suggested by the recent literature.
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Affiliation(s)
- Melissa Pulitzer
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Shamir Geller
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Erica Kumar
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Denise Frosina
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Alison Moskowitz
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Steven Horwitz
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Patricia Myskowski
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Meenal Kheterpal
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Alexander Chan
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Ahmet Dogan
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Achim Jungbluth
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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Geller S, Myskowski PL, Pulitzer M. NK/T-cell lymphoma, nasal type, γδ T-cell lymphoma, and CD8-positive epidermotropic T-cell lymphoma-clinical and histopathologic features, differential diagnosis, and treatment. ACTA ACUST UNITED AC 2018; 37:30-38. [PMID: 29719018 DOI: 10.12788/j.sder.2018.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The cytotoxic lymphomas of the skin constitute a heterogeneous group of rare lymphoproliferative diseases that are derived from mature T cells and natural killer (NK) cells that express cytotoxic molecules (T-cell intracellular antigen- 1, granzyme A/B, and perforin). Although frequently characterized by an aggressive course and poor prognosis, these diseases can have variable clinical behavior. This review delivers up-to-date information about the clinical presentation, histopathologic features, differential diagnosis, and therapy of extranodal NK/T-cell lymphoma, nasal type, primary cutaneous gamma delta T-cell lymphoma, and primary cutaneous CD8+ aggressive epidermotropic cytotoxic T-cell lymphoma.
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Affiliation(s)
- Shamir Geller
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Patricia L Myskowski
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Melissa Pulitzer
- Dermatopathology Division, Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York, USA.
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