1
|
Kempf W, Mitteldorf C, Cerroni L, Willemze R, Berti E, Guenova E, Scarisbrick JJ, Battistella M. Classifications of cutaneous lymphomas and lymphoproliferative disorders: An update from the EORTC cutaneous lymphoma histopathology group. J Eur Acad Dermatol Venereol 2024. [PMID: 38581201 DOI: 10.1111/jdv.19987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 02/28/2024] [Indexed: 04/08/2024]
Abstract
The classification of primary cutaneous lymphomas and lymphoproliferative disorders (LPD) is continuously evolving by integrating novel clinical, pathological and molecular data. Recently two new classifications for haematological malignancies including entities of cutaneous lymphomas were proposed: the 5th edition of the WHO classification of haematolymphoid tumours and the International Consensus Classification (ICC) of mature lymphoid neoplasms. This article provides an overview of the changes introduced in these two classifications compared to the previous WHO classification. The main changes shared by both classifications include the downgrading of CD8+ acral T-cell lymphoma to CD8+ acral T-cell LPD, and the recognition of entities that were previously categorized as provisional and have now been designated as definite types including primary cutaneous small or medium CD4+ T-cell LPD, primary cutaneous gamma/delta T-cell lymphoma, primary cutaneous CD8+ aggressive epidermotropic cytotoxic T-cell lymphoma, Epstein-Barr virus-positive mucocutaneous ulcer. Both classifications consider primary cutaneous marginal zone B-cell clonal neoplasm as an indolent disease but use a different terminology: primary cutaneous marginal zone lymphoma (WHO) and primary cutaneous marginal zone LPD (ICC). The 5th WHO classification further introduces and provides essential and desirable diagnostic criteria for each disease type and includes chapters on reactive B- or T-cell rich lymphoid proliferations formerly referred as cutaneous pseudolymphomas, as well as histiocyte and CD8 T-cell rich LPD in patients with inborn error of immunity. As already emphasized in previous lymphoma classifications, the importance of integrating clinical, histological, phenotypic and molecular features remains the crucial conceptual base for defining cutaneous (and extracutaneous) lymphomas.
Collapse
Affiliation(s)
- W Kempf
- Kempf und Pfaltz Histologische Diagnostik, Zurich, Switzerland
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - C Mitteldorf
- Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, Göttingen, Germany
| | - L Cerroni
- Research Unit of Dermatopathology, Department of Dermatology, Medical University of Graz, Graz, Austria
| | - R Willemze
- Department of Dermatology, Leiden University Medical Center, Leiden, The Netherlands
| | - E Berti
- Department of Dermatology, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - E Guenova
- Department of Dermatology, Lausanne University Hospital, Lausanne, Switzerland
- Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - J J Scarisbrick
- Centre for Rare Diseases, University Hospital of Birmingham, Birmingham, UK
| | - M Battistella
- Service de Pathologie, Hôpital Saint-Louis, AP-HP, Paris, France
- Inserm U976 "Human Immunology, Pathophysiology and Immunotherapy", Université Paris Cité, Paris, France
| |
Collapse
|
2
|
Stephan C, Grossman ME, Magro CM. Primary cutaneous acral CD8-positive T-cell lymphoproliferative disorder: A clinical and histologic retrospective cohort study. Clin Dermatol 2023; 41:666-679. [PMID: 37716580 DOI: 10.1016/j.clindermatol.2023.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/18/2023]
Abstract
Clonally restricted, non-epidermotropic, low-grade, CD8-positive T-cell infiltrates of the skin was recognized as a unique form of indolent CD8-positive lymphoproliferative disease in 2007 when it was first called primary cutaneous indolent CD8-positive lymphoid proliferation. More recently, the designation of primary cutaneous acral CD8-positive T-cell lymphoproliferative disorder has been used. It is unique as a cutaneous lymphoproliferative disorder because of relative uniformity in its clinical presentation and histomorphology. It has been recognized as having an interesting predilection for the ear and acral sites, characteristically presenting as a solitary lesion. The basic morphology is one characterized by a non-epidermotropic, tumefactive infiltrate of well-differentiated, noncerebriform, atypical, small- to intermediate-sized lymphocytes that exhibit a specific phenotype characterized by CD8 and TIA positivity in concert with a distinct perinuclear Golgi staining pattern for CD68. The typical presentation is in the context of a solitary lesion, which can be treated surgically or with local irradiation. We describe in detail two very unusual cases that expand the clinical spectrum of this condition given the non-acral localization, the multiplicity of lesions to involve the trunk and extremities, and, in one case, the stable but recalcitrant course over 30 years. In addition, the second patient developed paraneoplastic dermatomyositis. We also retrospectively review our database for other cases that represent the entity of primary cutaneous acral CD8-positive T-cell lymphoproliferative disorder and review the literature focusing on non-acral cases. Nomenclature evolution from its first recognition in 2007 to the present is discussed.
Collapse
Affiliation(s)
- Carla Stephan
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine/New York-Presbyterian, New York, USA
| | - Marc E Grossman
- Department of Dermatology, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Cynthia M Magro
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine/New York-Presbyterian, New York, USA.
| |
Collapse
|
3
|
Shimshak S, Sokumbi O, Isaq N, Goyal A, Comfere N. A Practical Guide to the Diagnosis, Evaluation, and Treatment of Cutaneous T-Cell Lymphoma. Dermatol Clin 2023; 41:209-229. [DOI: 10.1016/j.det.2022.07.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
4
|
Kempf W. Follicular T helper cells and cutaneous T-cell lymphomas. Br J Dermatol 2022; 187:841-842. [PMID: 36045612 DOI: 10.1111/bjd.21839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 08/08/2022] [Indexed: 12/24/2022]
Affiliation(s)
- Werner Kempf
- Kempf und Pfaltz Histologische Diagnostik, and Department of Dermatology, University Hospital Zürich, Zürich, Switzerland
| |
Collapse
|
5
|
Mark E, Sutton M, Gru A. Primary Cutaneous Anaplastic Large-Cell Lymphoma With Aberrant CD20 Expression: Case Report and Review of the Literature. Am J Dermatopathol 2022; 44:971-978. [PMID: 36066130 DOI: 10.1097/dad.0000000000002281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
ABSTRACT Cutaneous CD20 + T-cell lymphomas are exceedingly rare. Differentiating cases of T-cell lymphoma with aberrant expression of the B-cell marker CD20 from B-cell lymphoma may be associated with misdiagnosis or delays in diagnosis. We report, to the authors' knowledge, the first case of CD20 + primary cutaneous anaplastic large-cell lymphoma and review the literature to characterize published cases of CD20 + cutaneous T-cell lymphoma (n = 40). There is no accepted explanation for this phenomenon; however, it is suspected that these cases may be due to neoplastic transformation of CD20 + T cells or that CD20 may represent a T-cell activation marker. Expression of CD20 may have clinical significance in prognostication and consideration of treatment options with anti-CD20 therapies such as rituximab.
Collapse
Affiliation(s)
- Erica Mark
- Department of Dermatopathology, University of Virginia, Charlottesville, VA; and
| | - Mark Sutton
- Advanced Dermatology and Skin Cancer Specialists Temecula, Temecula, CA
| | - Alejandro Gru
- Department of Dermatopathology, University of Virginia, Charlottesville, VA; and
| |
Collapse
|
6
|
Gallardo F, Pujol RM. Genetics Abnormalities with Clinical Impact in Primary Cutaneous Lymphomas. Cancers (Basel) 2022; 14:4972. [PMID: 36291756 PMCID: PMC9599538 DOI: 10.3390/cancers14204972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 10/04/2022] [Accepted: 10/04/2022] [Indexed: 11/18/2022] Open
Abstract
Simple Summary The genetic landscape of cutaneous T-cell lymphomas analyzed by sequencing high throughput techniques shows a heterogeneous somatic mutational profile and genomic copy number variations in the TCR signaling effectors, the NF-κB elements, DNA damage/repair elements, JAK/STAT pathway elements and epigenetic modifiers. A mutational and genomic stratification of these patients provides new opportunities for the development or repurposing of (personalized) therapeutic strategies. The genetic heterogeneity in cutaneous B-cell lymphoma parallels with the specific subtype. Damaging mutations in primary cutaneous diffuse large B-cell lymphoma of the leg type, involving MYD88 gene, or BCL6 and MYC translocations or CDKN2A deletions are useful for diagnostic purposes. The more indolent forms, as the primary cutaneous lymphoma of follicle center cell (somatic mutations in TNFRSF14 and 1p36 deletions) and the cutaneous lymphoproliferative disorder of the marginal zone cells (FAS gene), present with a more restricted pattern of genetic alterations. Abstract Primary cutaneous lymphomas comprise a heterogeneous group of extranodal non-Hodgkin lymphomas (NHL) that arise from skin resident lymphoid cells and are manifested by specific lymphomatous cutaneous lesions with no evidence of extracutaneous disease at the time of diagnosis. They may originate from mature T-lymphocytes (70% of all cases), mature B-lymphocytes (25–30%) or, rarely, NK cells. Cutaneous T-cell lymphomas (CTCL) comprise a heterogeneous group of T-cell malignancies including Mycosis Fungoides (MF) the most frequent subtype, accounting for approximately half of CTCL, and Sézary syndrome (SS), which is an erythrodermic and leukemic subtype characterized by significant blood involvement. The mutational landscape of MF and SS by NGS include recurrent genomic alterations in the TCR signaling effectors (i.e., PLCG1), the NF-κB elements (i.e., CARD11), DNA damage/repair elements (TP53 or ATM), JAK/STAT pathway elements or epigenetic modifiers (DNMT3). Genomic copy number variations appeared to be more prevalent than somatic mutations. Other CTCL subtypes such as primary cutaneous anaplastic large cell lymphoma also harbor genetic alterations of the JAK/STAT pathway in up to 50% of cases. Recently, primary cutaneous aggressive epidermotropic T-cell lymphoma, a rare fatal subtype, was found to contain a specific profile of JAK2 rearrangements. Other aggressive cytotoxic CTCL (primary cutaneous γδ T-cell lymphomas) also show genetic alterations in the JAK/STAT pathway in a large proportion of patients. Thus, CTCL patients have a heterogeneous genetic/transcriptional and epigenetic background, and there is no uniform treatment for these patients. In this scenario, a pathway-based personalized management is required. Cutaneous B-cell lymphoma (CBCL) subtypes present a variable genetic profile. The genetic heterogeneity parallels the multiple types of specialized B-cells and their specific tissue distribution. Particularly, many recurrent hotspot and damaging mutations in primary cutaneous diffuse large B-cell lymphoma of the leg type, involving MYD88 gene, or BCL6 and MYC translocations and BLIMP1 or CDKN2A deletions are useful for diagnostic and prognostic purposes for this aggressive subtype from other indolent CBCL forms.
Collapse
|
7
|
Gru AA. An accurate diagnosis of dermal CD8 + lymphoproliferative disorders requires clinicopathological and immunophenotypic correlation. Br J Dermatol 2022; 186:769-771. [PMID: 35501942 PMCID: PMC9322291 DOI: 10.1111/bjd.21299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Linked Article: Kempf et al. Br J Dermatol 2022; 186:887–897.
Collapse
Affiliation(s)
- Alejandro A Gru
- Department of Pathology & Dermatology, Cutaneous Lymphoma Program, University of Virginia, Charlottesville, VA, USA
| |
Collapse
|
8
|
Kempf W, Petrella T, Willemze R, Jansen P, Berti E, Santucci M, Geissinger E, Cerroni L, Maubac E, Battistella M, Goodlad J, Guenova E, Lappalainen K, Ranki A, Craig P, Calonje E, Martin B, Whittaker S, Oschlies I, Wehkamp U, Nicolay JP, Wobser M, Scarisbruck J, Pimpinelli N, Stadler R, Kerl K, Quaglino P, Lin J, Chen L, Beer M, Emanuel P, Dalle S, Robson A. Clinical, histopathological and prognostic features of primary cutaneous acral CD8+ T-cell lymphoma and other dermal CD8+ cutaneous lymphoproliferations - Results of an EORTC Cutaneous Lymphoma Group Workshop. Br J Dermatol 2022; 186:887-897. [PMID: 34988968 DOI: 10.1111/bjd.20973] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 11/27/2021] [Accepted: 12/30/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND The differential diagnosis of atypical dermal non-epidermotropic CD8+lymphocytic infiltrates includes a heterogenous spectrum of lymphoproliferations with overlapping histological and phenotypic features, but divergent clinical manifestations and prognoses. As these neoplasms are rare, more data on their clinicopathological presentation and course are needed. OBJECTIVES To assess the clinical, histological, immunophenotypic features, outcome of and differences between dermal CD8+ lymphoproliferations. METHODS Retrospective analysis of a series of 47 patients and biopsies by the international EORTC Cutaneous Lymphoma Group. RESULTS The dermal CD8+ lymphoproliferations (n=46) could be assigned to one of the following 3 groups: (1) cutaneous acral CD8+ T-cell lymphoma (n=31), characterized mostly by a solitary nodule arising at acral sites, a monotonous dermal infiltrate of small to medium-sized CD8+ lymphocytes with a characteristic dot-like pattern of CD68, a low proliferation rate and an excellent prognosis; (2) primary cutaneous CD8+ peripheral T-cell lymphoma, unspecified/NOS (n=11), presenting with one or multiple rapidly evolving tumors, mostly medium-sized pleomorphic CD8+ tumor cells with expression of several cytotoxic markers and high proliferative activity. After chemotherapy or radiotherapy relapses occurred in one third and 1 of 11 patients died due to lymphoma (9%); (3) The third group (n=4) comprised cutaneous CD8+ lymphoproliferations associated with congenital immunodeficiency syndromes in 2 patients with persisting localized or disseminated violaceous to brownish plaques on the extremities, a histiocyte-rich infiltrate of mostly small CD8+ lymphocytes with subtle atypia and a protracted course, and papular CD8+ eruptions in two patients with acquired immunosuppression (HIV-infection, solid organ transplantation). CONCLUSIONS A constellation of distinct clinical, histopathologic and phenotypic features allows discrimination and assignment of dermal CD8+ infiltrates to distinct disease entities including cutaneous acral CD8+ T-cell lymphoma, primary cutaneous CD8+ peripheral T-cell lymphoma, unspecified/NOS and cutaneous CD8+ lymphoproliferations associated with congenital or acquired immunodeficiency syndromes. Primary cutaneous acral CD8+ lymphoma, assigned a provisional category in current lymphoma classifications, is a distinct and reproducible entity. A correct diagnosis is essential to avoid unnecessarily aggressive treatment for indolent CD8+ lymphoproliferations and to identify cases with underlying immunodeficiency or potential for dismal outcome.
Collapse
Affiliation(s)
- Werner Kempf
- Kempf und Pfaltz Histologische Diagnostik, Zurich, Switzerland.,Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - Tony Petrella
- Departement of Pathology, Hopital Maisonneuve-Rosemont, Montréal, Canada
| | - Rein Willemze
- Department of Dermatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Patty Jansen
- Department of Clinical Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Emilio Berti
- University of Milan, Director U.O.C of Dermatology Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico of Milan, Italy
| | - Marco Santucci
- Department of Health Sciences, University of Florence School of Human Health Sciences and Division of Histopathology and Molecular Diagnostics, Careggi University Hospital, Florence, Italy
| | - Eva Geissinger
- Institute of Pathology, University of Würzburg, Würzburg, Germany
| | - Lorenzo Cerroni
- Department of Dermatology, Medical University of Graz, Austria
| | - Eve Maubac
- Service de Dermatologie du Pr F. Caux, Hôpital Avicenne Bobigny Cedex, France
| | - Maxime Battistella
- Department of Pathology, Saint-Louis Hospital, Assistance Publique-Hôpitaux de Paris, Paris University, INSERM U976, Paris, France
| | | | - Emmanuella Guenova
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland.,Department of Dermatology, University Hospital Lausanne, Faculty of Biology and Medicine, University of Lausanne, CH-1011, Lausanne, Switzerland
| | | | - Annamari Ranki
- Skin and Allergy Hospital, Helsinki University Central Hospital, Finland
| | - Paul Craig
- Gloucestershire Hospitals NHS Foundation Trust Gloucestershire Cellular Pathology Laboratory, Cheltenham General Hospital, Cheltenham, Gloucestershire, UK
| | - Eduardo Calonje
- Department of Dermatopathology, St John's Institute of Dermatology, St Thomas' Hospital, London, England, UK
| | - Blanca Martin
- Department of Dermatopathology, St John's Institute of Dermatology, St Thomas' Hospital, London, England, UK
| | - Sean Whittaker
- St John's Institute of Dermatology, Guys and St Thomas NHS Foundation Trust, Lomdo, UK
| | - Ilske Oschlies
- Dept. of Pathology, Section Hematopathology and lymph node registry, University Hospital Schleswig-Holstein, Campus Kiel, Germany
| | - Ulrike Wehkamp
- Department of Dermatology and Allergology, University Hospital Schleswig-Holstein, Campus Kiel, Germany
| | - Jan P Nicolay
- Dept. of Dermatology, University Medical Center Mannheim, Germany
| | - Marion Wobser
- Department of Dermatology, Venereology and Allergology and Skin Cancer Center, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Julia Scarisbruck
- Department of Dermatology, University Hospital Birmingham, Birmingham, UK
| | - Nicola Pimpinelli
- Dermatology Unit, Department of Health Sciences, University of Florence Medical School, Florence, Italy
| | - Rudi Stadler
- Dept. Dermatology, Venerology, Allergology and Phlebology, Johannes Wesling Klinikum Minden, University Clinic Ruhr-Universität Bochum, Minden, Germany
| | - Katrin Kerl
- Dept. of Dermatology, Ludwig-Maximilian University Hospital of Munich, Munich, Germany
| | - Pietro Quaglino
- Dermatologic Clinic, Dept Medical Sciences, University of Turin Medical School, Torino, Italy
| | - Jinran Lin
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Lianjun Chen
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Michaela Beer
- Kempf und Pfaltz Histologische Diagnostik, Zurich, Switzerland
| | - Patrick Emanuel
- Clinica Ricarda Palma, Lima, Peru and University of Auckland, Auckland, New Zealand
| | - Stephane Dalle
- Unit of Dermatology, Cancer Research center of Lyon, Hôpital Lyon Sud, Hospices Civils de Lyon, Université Claude Bernard Lyon 1, France
| | - Alistair Robson
- Institute of Oncology, Lisbon, Portugal, Portugal.,LDPath, London, UK
| |
Collapse
|
9
|
Bigas A, Rodriguez-Sevilla JJ, Espinosa L, Gallardo F. Recent advances in T-cell lymphoid neoplasms. Exp Hematol 2021; 106:3-18. [PMID: 34879258 DOI: 10.1016/j.exphem.2021.12.191] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 11/29/2021] [Accepted: 12/02/2021] [Indexed: 12/14/2022]
Abstract
T Cells comprise many subtypes of specified lymphocytes, and their differentiation and function take place in different tissues. This cellular diversity is also observed in the multiple ways T-cell transformation gives rise to a variety of T-cell neoplasms. This review covers the main types of T-cell malignancies and their specific characteristics, emphasizing recent advances at the cellular and molecular levels as well as differences and commonalities among them.
Collapse
Affiliation(s)
- Anna Bigas
- Program in Cancer Research, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), CIBERONC, Barcelona, Spain; Institut Josep Carreras contra la Leucemia, Barcelona, Spain.
| | | | - Lluis Espinosa
- Program in Cancer Research, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), CIBERONC, Barcelona, Spain
| | - Fernando Gallardo
- Dermatology Department, Parc de Salut Mar-Hospital del Mar, Barcelona, Spain.
| |
Collapse
|
10
|
Dummer R, Vermeer MH, Scarisbrick JJ, Kim YH, Stonesifer C, Tensen CP, Geskin LJ, Quaglino P, Ramelyte E. Cutaneous T cell lymphoma. Nat Rev Dis Primers 2021; 7:61. [PMID: 34446710 DOI: 10.1038/s41572-021-00296-9] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/23/2021] [Indexed: 02/07/2023]
Abstract
Primary cutaneous T cell lymphomas (CTCLs) are a heterogeneous group of lymphomas that present in the skin with no evidence of extracutaneous disease at the time of diagnosis. CTCL subtypes demonstrate a variety of clinical, histological, and molecular features, and can follow an indolent or a very aggressive course. The underlying pathogenetic mechanisms are not yet entirely understood. The pathophysiology of CTCL is complex and a single initiating factor has not yet been identified. Diagnosis is based on clinicopathological correlation and requires an interdisciplinary team. Treatment decision is made based on short-term and long-term goals. Therapy options comprise skin-directed therapies, such as topical steroids or phototherapy, and systemic therapies, such as monoclonal antibodies or chemotherapy. So far, the only curative treatment approach is allogeneic haematopoietic stem cell transplantation. Novel therapies, such as chimeric antigen receptor T cells, monoclonal antibodies or small molecules, are being investigated in clinical trials. Patients with CTCL have reduced quality of life and a lack of effective treatment options. Further research is needed to better identify the underlying mechanisms of CTCL development and course as well as to better tailor treatment strategies to individual patients.
Collapse
|
11
|
Minzenmayer AN, Taylor K, Housewright CD, Bicknell LM, Hendrick SJ, Tsai JH, Siref A. Indolent CD8+ primary cutaneous T-cell lymphoma involving the eyelid of an adolescent. J Cutan Pathol 2021; 48:1489-1492. [PMID: 34218462 DOI: 10.1111/cup.14095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/23/2021] [Accepted: 06/29/2021] [Indexed: 11/28/2022]
Abstract
Primary cutaneous acral CD8+ T-cell lymphoma (PCACTL) is currently a provisional entity defined as a rare cutaneous proliferation of atypical CD8+ lymphocytes that preferentially involves acral sites and has a good prognosis. We present a case of primary cutaneous CD8+ T-cell lymphoma involving the eyelid of an adolescent male. The case shares features with PCACTL, including indolent clinical behavior and expression of CD68 in a Golgi-associated dot-like pattern; however, other features differ significantly from PCACTL as currently defined by the World Health Organization (WHO). These features include ulceration, expression of CD56, granzyme B, and perforin, and a high proliferative index. Given these discrepancies, our case is currently best classified as a CD8+ primary cutaneous peripheral T-cell lymphoma, not otherwise specified. We review the differential diagnosis for this case and suggest expanding the definition of PCACTL.
Collapse
Affiliation(s)
- Andrew N Minzenmayer
- Department of Dermatology, Baylor Scott and White Central Texas, Temple, Texas, USA
| | - Kirby Taylor
- Department of Ophthalmology, Baylor Scott and White Central Texas, Temple, Texas, USA
| | - Chad D Housewright
- Department of Dermatology, Baylor Scott and White Central Texas, Temple, Texas, USA
| | - Lindsay M Bicknell
- Department of Dermatology, Baylor Scott and White Central Texas, Temple, Texas, USA
| | - Sophia J Hendrick
- Department of Dermatology, Baylor Scott and White Central Texas, Temple, Texas, USA
| | - Jonathan H Tsai
- Department of Ophthalmology, Baylor Scott and White Central Texas, Temple, Texas, USA
| | - Andrew Siref
- Department of Pathology, Baylor Scott and White Central Texas, Temple, Texas, USA
| |
Collapse
|