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Alberti-Violetti S, Avallone G, Colonna C, Tavoletti G, Venegoni L, Merlo V, Cambiaghi S, Marzano AV, Berti E, Cavalli R. Paediatric cutaneous lymphomas including rare subtypes: A 40-year experience at a tertiary referral centre. J Eur Acad Dermatol Venereol 2024. [PMID: 38650545 DOI: 10.1111/jdv.20028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 03/08/2024] [Indexed: 04/25/2024]
Abstract
BACKGROUND Primary cutaneous lymphomas are neoplasms of the immune system with a distinct tropism for the skin and an absence of extracutaneous manifestations at the time of diagnosis. Studies focusing on cutaneous lymphomas in children and adolescents remain scarce and often do not encompass the rare subtypes. OBJECTIVES To address this knowledge gap by describing the clinical, histological and molecular characteristics of a large group of paediatric patients affected by primary cutaneous lymphoma. We also provided the Paediatric Primary Cutaneous Lymphoma Atlas that illustrates the clinicopathological spectrum of observed presentations, in the hope of supporting other physicians in the diagnostic process. METHODS Retrospective chart review of paediatric patients diagnosed with primary cutaneous lymphomas between 1980 and 2022 at the Paediatric Dermatology Unit of Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan. RESULTS A total of 101 patients (58 males, 43 females) met the inclusion criteria. The most common subtypes were lymphomatoid papulosis (n = 48) and mycosis fungoides (n = 31). These were followed by primary cutaneous CD4+ small/medium T-cell lymphoproliferative disorders (n = 7), primary cutaneous anaplastic large-cell lymphomas (n = 5), primary cutaneous marginal zone B-cell lymphomas (n = 3), primary cutaneous follicle centre lymphomas (n = 2), subcutaneous panniculitis-like T-cell lymphomas (n = 2), primary cutaneous peripheral T-cell lymphoma not otherwise specified (n = 1), primary cutaneous precursor B-lymphoblastic lymphoma (n = 1) and Sézary syndrome (n = 1). Clinical follow-up data covering a median of 70.8 months (range 1-324) were available for 74 patients, of whom three died due to cutaneous lymphoma. CONCLUSIONS Our findings shed light on the peculiar aspects and long-term outcomes of paediatric cutaneous lymphomas, particularly emphasizing their distinctive features in comparison to their adult counterparts and exploring the less common subtypes. Further larger-scale studies are warranted to better characterize these entities and to achieve a more rapid and accurate diagnosis.
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Affiliation(s)
- Silvia Alberti-Violetti
- Dermatology Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Gianluca Avallone
- Dermatology Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
- Dermatology Clinic, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Cristiana Colonna
- Pediatric Dermatology Unit, Department of Clinical Sciences and Community Health, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Gianluca Tavoletti
- Dermatology Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Luigia Venegoni
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Valentina Merlo
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Stefano Cambiaghi
- Pediatric Dermatology Unit, Department of Clinical Sciences and Community Health, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Angelo V Marzano
- Dermatology Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Emilio Berti
- Dermatology Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
- Inter-Hospital Pathology Division, IRCCS MultiMedica, Milan, Italy
| | - Riccardo Cavalli
- Pediatric Dermatology Unit, Department of Clinical Sciences and Community Health, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
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Jung JM, Lee MY, Won CH, Chang SE, Park CS, Lee MW, Lee WJ. Clinicopathological Factors Associated with the Prognosis and Chronicity of Lymphomatoid Papulosis: A Retrospective Cohort Study. CLINICAL LYMPHOMA, MYELOMA & LEUKEMIA 2022; 22:e541-e548. [PMID: 35307318 DOI: 10.1016/j.clml.2022.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/09/2022] [Accepted: 02/20/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND The clinical and pathological features of lymphomatoid papulosis (LYP) are diverse. The objective of this study is to evaluate the clinical and pathological features associated with the prognosis and clinical course of LYP. PATIENTS AND METHODS The clinical and pathological features of LYP in a medical center database were retrospectively retrieved. RESULTS Overall, 58 LYP patients were included in the study. The mean age at diagnosis was 39.1 years and the female-to-male ratio was 1:1.2. More than two-thirds (40/58, 69.0%) of the patients showed a chronic and recurrent disease course. A longer pre-diagnosis duration (odds ratio (OR), 1.01; 95% confidence interval (CI), 1.00-1.03) was significantly associated with secondary lymphoma development. Lower extremity involvement (OR, 10.40; 95% CI, 1.17-92.28) and the absence of eosinophils in the lesions (OR, 11.28; 95% CI, 1.01-126.24) were found to be significantly associated with the chronic and recurrent course of LYP. CONCLUSION A longer pre-diagnosis duration is associated with secondary lymphoma, while a lower extremity involvement and the absence of lesional eosinophil infiltration are associated with the chronicity of LYP.
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Affiliation(s)
- Joon Min Jung
- Department of Dermatology, Asan Medical Center, University of Ulsan College of Medicine, 88, Songpa-gu, Seoul, Korea
| | - Mi Young Lee
- Department of Dermatology, Asan Medical Center, University of Ulsan College of Medicine, 88, Songpa-gu, Seoul, Korea
| | - Chong Hyun Won
- Department of Dermatology, Asan Medical Center, University of Ulsan College of Medicine, 88, Songpa-gu, Seoul, Korea
| | - Sung Eun Chang
- Department of Dermatology, Asan Medical Center, University of Ulsan College of Medicine, 88, Songpa-gu, Seoul, Korea
| | - Chan-Sik Park
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, 88, Songpa-gu, Seoul, Korea
| | - Mi Woo Lee
- Department of Dermatology, Asan Medical Center, University of Ulsan College of Medicine, 88, Songpa-gu, Seoul, Korea.
| | - Woo Jin Lee
- Department of Dermatology, Asan Medical Center, University of Ulsan College of Medicine, 88, Songpa-gu, Seoul, Korea.
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Corail DR, Mondoloni M, Calvo AS, Quilhot P, Lescaille G, Baaroun V, Rochefort J. Oral manifestation of lymphomatoid papulosis: systematic review. JOURNAL OF ORAL MEDICINE AND ORAL SURGERY 2022. [DOI: 10.1051/mbcb/2021043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Introduction: Lymphomatoid Papulosis (LyP) is a lymphoproliferative disorder with typical histopathological criteria and a spontaneous regression. Only few cases of oral involvement have been reported. We wondered about their clinical characteristics and their association with lymphoma. Method: This systematic review is conducted according to the PRISMA statement. The Oxford Centre for Evidence Based Medicine table (OCEBM) and the scoring from the National Agency for Accreditation and Assessment in Health (ANAES) was assigned to each study. Results: We have included 16 references. LyP can occur at any age with a female predilection. Oral lesions were unique ulcer and tongue was mostly affected. Histological types A, and C were dominant and LyP resolved spontaneously. 1 case was associated with a lymphoma. Discussion: Cutaneous LyP more affects men and are mostly classified as type A while those orals are type A or C. Oral LyP is probably a progressive lesion whose evolution is not illustrated by the histological aspect which often reflects only the initial acute period. Conclusion: Our literature review has shown that the epidemiological aspects between oral and cutaneous LyP are not the same. LyP may be associated with an increased risk of developing systemic lymphoproliferative disorders.
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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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Baykal C, Kılıç Sayar S, Yazganoğlu KD, Büyükbabani N. Evaluation of Associated Lymphomas and Their Risk Factors in Patients with Lymphomatoid Papulosis: A Retrospective Single-Center Study from Turkey. Turk J Haematol 2021; 38:49-56. [PMID: 33389922 PMCID: PMC7927440 DOI: 10.4274/tjh.galenos.2020.2020.0685] [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] [Indexed: 12/01/2022] Open
Abstract
Objective: Lymphomatoid papulosis (LyP) is an indolent skin disease with variable clinical features classified among the primary cutaneous CD30+ T-cell lymphoproliferative disorders. It may show association with cutaneous and systemic lymphomas. We aimed to identify the frequency and characteristics of associated lymphomas among Turkish patients with LyP and to determine the risk factors for secondary lymphomas. Materials and Methods: The files of patients diagnosed with LyP between 1998 and 2018 in a tertiary dermatology clinic were retrospectively analyzed. Univariate and multivariate models were used to assess the possible risk factors for secondary lymphomas, such as demographic and clinical characteristics of the patients. Results: Among 61 patients (47 adults, 14 children) with LyP, a total of 22 secondary lymphomas were observed in 20 patients. Nineteen of them were adults. Mycosis fungoides (MF) was the major associated lymphoma (n=19) followed by systemic anaplastic large cell lymphoma (ALCL) (n=2) and primary cutaneous ALCL (n=1). The most common stage in patients with accompanying MF was stage IB (n=11). While 18 patients showed the classical type of MF, one patient had folliculotropic MF. When the risk factors for association between LyP and other lymphomas were evaluated, only older age was found to be a significant risk factor and existence of ulcerated lesions was found to be a negative indicator. Conclusion: LyP is not rare in the pediatric population. MF is the most common associated lymphoma in patients with LyP. Adult LyP patients are more commonly associated with secondary lymphomas than pediatric patients. Older age at the time of diagnosis of LyP is a significant risk factor for associated lymphomas.
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Affiliation(s)
- Can Baykal
- İstanbul University, İstanbul Faculty of Medicine, Department of Dermatology and Venereology, İstanbul, Turkey
| | - Sıla Kılıç Sayar
- İstanbul University, İstanbul Faculty of Medicine, Department of Dermatology and Venereology, İstanbul, Turkey
| | - Kurtuluş Didem Yazganoğlu
- İstanbul University, İstanbul Faculty of Medicine, Department of Dermatology and Venereology, İstanbul, Turkey
| | - Nesimi Büyükbabani
- İstanbul University, İstanbul Faculty of Medicine, Department of Pathology, İstanbul, Turkey
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Melchers RC, Willemze R, Bekkenk MW, de Haas ERM, Horvath B, van Rossum MM, Sanders CJG, Veraart JCJM, Putter H, Jansen PM, Vermeer MH, Quint KD. Frequency and prognosis of associated malignancies in 504 patients with lymphomatoid papulosis. J Eur Acad Dermatol Venereol 2019; 34:260-266. [PMID: 31715046 PMCID: PMC7028293 DOI: 10.1111/jdv.16065] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 10/24/2019] [Indexed: 12/18/2022]
Abstract
Background Lymphomatoid papulosis (LyP) can be associated with other haematological malignancies (HM), but reported percentages vary from 20% to over 50%. Objective To evaluate the frequency and prognostic significance of associated HM and non‐HM in LyP patients. Methods In this multicentre cohort study, the complete Dutch LyP population was included from the Dutch Cutaneous Lymphoma Registry between 1985 and 2018. Clinical and histopathological information was retrieved from every individual patient. Results After a median follow‐up of 120 months (range, 6–585), an associated HM was observed in 78/504 (15.5%) patients. Most common associated HM were mycosis fungoides (MF; n = 31) and anaplastic large‐cell lymphoma (ALCL; n = 29), while 19 patients had another HM of B‐cell (n = 14) or myeloid origin (n = 5). Even after a 25‐year follow‐up period, percentages of associated HM did not exceed 20%. Thirty‐nine of 465 patients (8.4%) without a prior or concurrent associated HM developed an associated HM during follow‐up, after a median of 68 months (range of 3–286 months). Nine of 78 patients died of associated HM, including 6/22 patients developing extracutaneous ALCL, while all patients with associated MF or skin‐limited ALCL had an excellent prognosis. Compared with the general population, LyP patients showed an increased risk (relative risk, 2.8; 95% confidence intervals, 2.4–3.3) for non‐HM, in particular cutaneous squamous cell carcinoma, melanoma and intestinal/lung/bladder cancer. Conclusions An associated HM was reported in 15.5% of the LyP patients, particularly MF and ALCL. Although the frequency of associated HM is lower than suggested and the prognosis of most patients with associated HM is excellent, a small subgroup will develop aggressive disease, in particular extracutaneous ALCL. Furthermore, LyP patients have a higher risk of developing other malignancies. Clinicians should be aware of these risks, and LyP patients require close monitoring. Linked article: F. Rongioletti. J Eur Acad Dermatol Venereol 2020; 34: 216–217. https://doi.org/10.1111/jdv.16157.
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Affiliation(s)
- R C Melchers
- Department of Dermatology, Leiden University Medical Center, Leiden, The Netherlands
| | - R Willemze
- Department of Dermatology, Leiden University Medical Center, Leiden, The Netherlands
| | - M W Bekkenk
- Department of Dermatology, Academic Medical Center, Vrije University Medical Center, Amsterdam, The Netherlands
| | - E R M de Haas
- Department of Dermatology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - B Horvath
- Department of Dermatology, University Medical Center of Groningen, Groningen, The Netherlands
| | - M M van Rossum
- Department of Dermatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - C J G Sanders
- Department of Dermatology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - J C J M Veraart
- Department of Dermatology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - H Putter
- Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, The Netherlands
| | - P M Jansen
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - M H Vermeer
- Department of Dermatology, Leiden University Medical Center, Leiden, The Netherlands
| | - K D Quint
- Department of Dermatology, Leiden University Medical Center, Leiden, The Netherlands
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Sidiropoulou P, Nikolaou V, Marinos L, Voudouri D, Komini E, Economidi A, Rigopoulos D, Stratigos A. The different faces of mycosis fungoides: results of a single‐center study. Int J Dermatol 2019; 59:314-320. [DOI: 10.1111/ijd.14735] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 10/21/2019] [Accepted: 11/05/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Polytimi Sidiropoulou
- 1st Department of Dermatology‐Venereology Faculty of Medicine National and Kapodistrian University of Athens Cutaneous Lymphoma Clinic, “A. Sygros” Hospital for Skin & Venereal Diseases Athens Greece
| | - Vasiliki Nikolaou
- 1st Department of Dermatology‐Venereology Faculty of Medicine National and Kapodistrian University of Athens Cutaneous Lymphoma Clinic, “A. Sygros” Hospital for Skin & Venereal Diseases Athens Greece
| | - Leonidas Marinos
- Hematopathology Department “Evangelismos” General Hospital Athens Greece
| | - Dimitra Voudouri
- 1st Department of Dermatology‐Venereology Faculty of Medicine National and Kapodistrian University of Athens Cutaneous Lymphoma Clinic, “A. Sygros” Hospital for Skin & Venereal Diseases Athens Greece
| | - Elena Komini
- 1st Department of Dermatology‐Venereology Faculty of Medicine National and Kapodistrian University of Athens Cutaneous Lymphoma Clinic, “A. Sygros” Hospital for Skin & Venereal Diseases Athens Greece
| | - Afroditi Economidi
- 1st Department of Dermatology‐Venereology Faculty of Medicine National and Kapodistrian University of Athens Cutaneous Lymphoma Clinic, “A. Sygros” Hospital for Skin & Venereal Diseases Athens Greece
| | - Dimitris Rigopoulos
- 1st Department of Dermatology‐Venereology Faculty of Medicine National and Kapodistrian University of Athens Cutaneous Lymphoma Clinic, “A. Sygros” Hospital for Skin & Venereal Diseases Athens Greece
| | - Alexander Stratigos
- 1st Department of Dermatology‐Venereology Faculty of Medicine National and Kapodistrian University of Athens Cutaneous Lymphoma Clinic, “A. Sygros” Hospital for Skin & Venereal Diseases Athens Greece
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Martinez-Cabriales SA, Walsh S, Sade S, Shear NH. Lymphomatoid papulosis: an update and review. J Eur Acad Dermatol Venereol 2019; 34:59-73. [PMID: 31494989 DOI: 10.1111/jdv.15931] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 08/08/2019] [Indexed: 12/13/2022]
Abstract
Lymphomatoid papulosis (LyP) is a benign chronic often relapsing skin condition that belongs to the CD30-positive cutaneous lymphoproliferative disorders. LyP typically presents as crops of lesions with a tendency to self-resolve, and morphology can range from solitary to agminated or diffuse papules and plaques to nodules or tumours. The clinical-histological spectrum can range from borderline cases to overlap with primary cutaneous anaplastic cell lymphoma (pcALCL). Histology and immunophenotype commonly show overlap with other CD30-positive disorders and sometimes may be identical to pcALCL, making its diagnosis more difficult. Patients with LyP have an increased risk of developing a second neoplasm such as mycosis fungoides, pcALCL and/or Hodgkin lymphoma. Clinical correlation allows its proper classification and diagnosis, which is fundamental for treatment and prognosis. This review focuses on the clinical appearance, histopathological features, diagnosis, differential diagnosis and management of LyP.
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Affiliation(s)
- S A Martinez-Cabriales
- Department of Medicine, University of Toronto, Toronto, ON, Canada.,Department of Dermatology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada.,Department of Dermatology, Autonomous University of Nuevo Leon, San Nicolas de los Garza, Mexico
| | - S Walsh
- Department of Medicine, University of Toronto, Toronto, ON, Canada.,Department of Dermatology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - S Sade
- Department of Pathology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - N H Shear
- Department of Medicine, University of Toronto, Toronto, ON, Canada.,Department of Dermatology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
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AbuHilal M, Walsh S, Shear N. Associated Hematolymphoid Malignancies in Patients With Lymphomatoid Papulosis: A Canadian Retrospective Study. J Cutan Med Surg 2017; 21:507-512. [PMID: 28614957 DOI: 10.1177/1203475417716366] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Lymphomatoid papulosis is one of the primary cutaneous CD30+ T-cell lymphoproliferative disorders. Although considered a benign disease, lymphomatoid papulosis has been associated potentially with an increased risk of secondary hematolymphoid malignancies. OBJECTIVE The aim of this study was to assess the clinical characteristics and histologic subtypes of lymphomatoid papulosis, identify the prevalence and types of secondary hematolymphoid malignancies, and determine the potential risk factors for development of these hematolymphoid malignancies. METHODS AND MATERIALS A retrospective chart review was performed for all histologically confirmed cases of lymphomatoid papulosis between 1991 and 2016. RESULTS Seventy patients with lymphomatoid papulosis were identified. Thirty patients (43%) experienced a secondary hematolymphoid malignancy. Twenty-four (80%) of the hematolymphoid malignancies occurred after the onset of lymphomatoid papulosis. Older age at diagnosis of lymphomatoid papulosis, male sex, histology type B, and the presence of T-cell receptor gene rearrangement are associated with higher risk of developing hematolymphoid malignancy. CONCLUSION Lymphomatoid papulosis is associated with increased risk of developing secondary hematolymphoid malignancies, particularly mycosis fungoides and cutaneous anaplastic large cell lymphoma.
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Affiliation(s)
- Mohanad AbuHilal
- 1 Division of Dermatology, University of Toronto, Toronto, ON, Canada
| | - Scott Walsh
- 1 Division of Dermatology, University of Toronto, Toronto, ON, Canada
| | - Neil Shear
- 1 Division of Dermatology, University of Toronto, Toronto, ON, Canada
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Abstract
Cutaneous CD30+ T-cell lymphoproliferative disorders (CD30+ T-LPD) represent a spectrum encompassing lymphomatoid papulosis (LyP), primary cutaneous anaplastic large-cell lymphoma (pcALCL) and borderline lesions. They share the expression of CD30 as a common phenotypic marker. They differ however in their clinical presentation, the histological features and clinical course. Moreover, LyP and PcALCL show numerous clinical, histological and phenotypic variants. Overlapping features of LyP and pcALCL with themselves and with other cutaneous and systemic lymphomas emphasize the importance of careful clinicopathologic correlation and staging in the diagnosis of CD30+ T-LPD. Furthermore, an increasing number of inflammatory and infectious skin disorders harboring medium-sized to large CD30+ cells have to be considered in the differential diagnosis. Whereas the expression of CD30 in cutaneous CD30+ T-LPD stands for a favourable prognosis, its expression in other cutaneous and systemic lymphomas has a divergent impact. The assessment of CD30 expression does not only provide prognostic information, but is of potential therapeutic relevance as CD30 can serve as a therapeutic target. This review focuses on the clinicopathological and phenotypic spectrum of CD30+ T-LPD, its differential diagnoses and the role of CD30 as a diagnostic, prognostic and therapeutic marker.
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Affiliation(s)
- Werner Kempf
- Kempf und Pfaltz, Histologische Diagnostik, Zürich, Switzerland; Department of Dermatology, University Hospital Zurich, CH-8091, Zurich, Switzerland.
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