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Lai P, Liu F, Liu X, Sun J, Wang Y. Differential molecular programs of cutaneous anaplastic large cell lymphoma and CD30-positive transformed mycosis fungoides. Front Immunol 2023; 14:1270365. [PMID: 37790936 PMCID: PMC10544577 DOI: 10.3389/fimmu.2023.1270365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 08/31/2023] [Indexed: 10/05/2023] Open
Abstract
Background Discriminating between cutaneous anaplastic large cell lymphoma (cALCL) and CD30-positive transformed mycosis fungoides (CD30+ TMF) is challenging, particularly when they arise in the context of pre-existing mycosis fungoides. The development of molecular diagnostic tools was hampered by the rarity of both diseases and the limited understanding of their pathogenesis. Methods In this study, we established a cohort comprising 25 cALCL cases and 25 CD30+ TMF cases, with transcriptomic data obtained from 31 samples. We compared the clinicopathological information and investigated the gene expression profiling between these two entities. Furthermore, we developed an immunohistochemistry (IHC) algorithm to differentiate these two entities clinically. Results Our investigation revealed distinct clinicopathological features and unique gene expression programs associated with cALCL and CD30+ TMF. cALCL and CD30+ TMF displayed marked differences in gene expression patterns. Notably, CD30+ TMF demonstrated enrichment of T cell receptor signaling pathways and an exhausted T cell phenotype, accompanied by infiltration of B cells, dendritic cells, and neurons. In contrast, cALCL cells expressed high levels of HLA class II genes, polarized towards a Th17 phenotype, and exhibited neutrophil infiltration. An IHC algorithm with BATF3 and TCF7 staining emerged as potential diagnostic markers for identifying these two entities. Conclusions Our findings provide valuable insights into the differential molecular signatures associated with cALCL and CD30+ TMF, which contribute to their distinct clinicopathological behaviors. An appropriate IHC algorithm could be used as a potential diagnostic tool.
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Affiliation(s)
- Pan Lai
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing, China
| | - Fengjie Liu
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiangjun Liu
- Department of Dermatology, Shandong University Qilu Hospital, Jinan, China
| | - Jingru Sun
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing, China
| | - Yang Wang
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing, China
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Singh S, Maurya AK. Junction of the redox dynamic, orchestra of signaling, and altered metabolism in regulation of T- cell lymphoma. Front Oncol 2023; 13:1108729. [PMID: 37274286 PMCID: PMC10235457 DOI: 10.3389/fonc.2023.1108729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 03/21/2023] [Indexed: 06/06/2023] Open
Abstract
T-cell lymphoma is a hematologic neoplasm derived from the lymphoid lineage. It belongs to a diverse group of malignant disorders, mostly affecting the young population worldwide, that vary with respect to molecular features as well as genetic and clinical complexities. Cancer cells rewire the cellular metabolism, persuading it to meet new demands of growth and proliferation. Furthermore, the metabolic alterations and heterogeneity are aberrantly driven in cancer by a combination of genetic and non-genetic factors, including the tumor microenvironment. New insight into cancer metabolism highlights the importance of nutrient supply to tumor development and therapeutic responses. Importantly, oxidative stress due to an imbalance in the redox status of reactive species via exogenous and/or endogenous factors is closely related to multiple aspects of cancer. This alters the signaling pathways governed through the multiple intracellular signal transduction and transcription factors, leading to tumor progression. These oncogenic signaling molecules are regulated through different redox sensors, including nuclear factor-erythroid 2 related factor 2 (Nrf2), phase-II antioxidant enzyme, and NQO1 (NADPH quinone oxidoreductase (1). The existing understanding of the molecular mechanisms of T-cell lymphoma regulation through the cross-talk of redox sensors under the influence of metabolic vulnerability is not well explored. This review highlights the role of the redox dynamics, orchestra of signaling, and genetic regulation involved in T-cell lymphoma progression in addition to the challenges to their etiology, treatment, and clinical response in light of recent updates.
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Anaplastic Large Cell Lymphoma: Molecular Pathogenesis and Treatment. Cancers (Basel) 2022; 14:cancers14071650. [PMID: 35406421 PMCID: PMC8997054 DOI: 10.3390/cancers14071650] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/18/2022] [Accepted: 03/21/2022] [Indexed: 11/25/2022] Open
Abstract
Simple Summary Anaplastic large cell lymphoma is a rare type of disease that occurs throughout the world and has four subtypes. A summary and comparison of these subtypes can assist with advancing our knowledge of the mechanism and treatment of ALCL, which is helpful in making progress in this field. Abstract Anaplastic large cell lymphoma (ALCL) is an uncommon type of non-Hodgkin’s lymphoma (NHL), as well as one of the subtypes of T cell lymphoma, accounting for 1 to 3% of non-Hodgkin’s lymphomas and around 15% of T cell lymphomas. In 2016, the World Health Organization (WHO) classified anaplastic large cell lymphoma into four categories: ALK-positive ALCL (ALK+ALCL), ALK-negative ALCL (ALK−ALCL), primary cutaneous ALCL (pcALCL), and breast-implant-associated ALCL (BIA-ALCL), respectively. Clinical symptoms, gene changes, prognoses, and therapy differ among the four types. Large lymphoid cells with copious cytoplasm and pleomorphic characteristics with horseshoe-shaped or reniform nuclei, for example, are found in both ALK+ and ALK−ALCL. However, their epidemiology and pathogenetic origins are distinct. BIA-ALCL is currently recognized as a new provisional entity, which is a noninvasive disease with favorable results. In this review, we focus on molecular pathogenesis and management of anaplastic large cell lymphoma.
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Sarfraz H, Gentille C, Ensor J, Wang L, Wong S, Ketcham MS, Joshi J, Pingali SRK. Primary cutaneous anaplastic large-cell lymphoma: a review of the SEER database from 2005 to 2016. Clin Exp Dermatol 2021; 46:1420-1426. [PMID: 34081802 DOI: 10.1111/ced.14777] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 04/27/2021] [Accepted: 06/01/2021] [Indexed: 12/31/2022]
Abstract
INTRODUCTION Primary cutaneous anaplastic large-cell lymphoma (PC-ALCL) is a rare T-cell lymphoma. A prior analysis of the Surveillance, Epidemiology, and End Results (SEER) database reported only 157 cases of localized primary cutaneous CD30+ T-cell lymphoproliferative disorders (PC-ALCL and lymphomatoid papulosis) from 1973 to 2004. Our analysis of the SEER database since 2004 is the largest to date and our results improve our understanding of this disease and their potential prognostic factors. METHODS We used the SEER database to retrospectively identify patients. Survival was analysed using the Kaplan-Meier method, and log-rank tests were used to compare survival distributions. RESULTS There were 501 cases of PC-ALCL recorded from 2005 to 2016. Overall survival rates at 5 and 10 years were found to be 80.6% (95% CI 76.3%-84.3%) and 61.5% (95% CI 54.1%-68.1%) respectively. Age ≥ 60 years [hazard ratio (HR) = 1.09, P = 0.001 and use of chemotherapy (HR = 1.86, P = 0.01)] were associated with lower overall survival. In contrast to the 1973-2004 cohort, the head and neck site was not significantly associated with prognosis on multivariate analysis. CONCLUSION PC-ALCL has been increasingly recognized over the past decade. Age > 60 years and use of chemotherapy are associated with a worse outcome. Contrary to prior studies, location was not associated with poor survival.
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Affiliation(s)
- H Sarfraz
- Department of Internal Medicine, Houston Methodist Hospital, Houston, TX, USA
| | - C Gentille
- Department of Oncology, Houston Methodist Cancer Center, Houston, TX, USA
| | - J Ensor
- Houston Methodist Research Institute, Houston, TX, USA
| | - L Wang
- Houston Methodist Research Institute, Houston, TX, USA
| | - S Wong
- Houston Methodist Research Institute, Houston, TX, USA
| | - M S Ketcham
- Department of Pathology and Genomic Medicine, Houston Methodist Hospita, Houston, TX, USA
| | - J Joshi
- Department of Oncology, Houston Methodist Cancer Center, Houston, TX, USA
| | - S R K Pingali
- Department of Oncology, Houston Methodist Cancer Center, Houston, TX, USA
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Lyu WT, Song QB, Qiong W, Liu J, Yong R, Yi FT, Han DL. A case report of aggressive course of CD30+ primary cutaneous anaplastic large cell lymphoma. Medicine (Baltimore) 2021; 100:e25770. [PMID: 33950967 PMCID: PMC8104231 DOI: 10.1097/md.0000000000025770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 04/15/2021] [Indexed: 01/04/2023] Open
Abstract
INTRODUCTION CD30+ primary cutaneous anaplastic large cell lymphoma (PC-ALCL) is a rare T-cell neoplasm, and has been reported to present with an indolent behavior. The PC-ALCL with aggressive behavior has not been reported in the literature. PATIENT CONCERNS We treated a patient with PC-ALCL that exhibited indolent behavior in the past 2 years and aggressive behavior within the last 3 months before presentation. DIAGNOSIS Aggressive CD30+ primary cutaneous anaplastic large cell lymphoma. INTERVENTIONS The radiotherapy regimen was individualized in terms of the target volume delineation and dose prescription, and the dose-response relationship was evaluated. OUTCOMES The mean distance of microscopic infiltration was 14.1 mm in depth and 14.3 mm circumferentially. The lesion completely regressed after the delivery of 40 Gy in 20 fractions over 4 weeks. The tumor did not recur over the next year. CONCLUSION An aggressive disease course is rare for indolent CD30+ PC-ALCL, which has similar histopathological characteristics as indolent PC-ALCL. The radiotherapy strategy should be individualized with curative intent.
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Affiliation(s)
- Wen-Tian Lyu
- Department of Oncology, Huanggang Center Hospital, Huangzhou District, Huanggang
| | - Qi-Bin Song
- Department of Oncology, Huanggang Center Hospital, Huangzhou District, Huanggang
| | | | - Jing Liu
- Department of Oncology, Huanggang Center Hospital, Huangzhou District, Huanggang
| | | | - Feng-Tao Yi
- Department of Radiation Oncology, General Hospital of Central Treater Command of PLA, Hongshan District, Wuhan, China
| | - Dong-liang Han
- Department of Radiation Oncology, General Hospital of Central Treater Command of PLA, Hongshan District, Wuhan, China
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Gerbe A, Alame M, Dereure O, Gonzalez S, Durand L, Tempier A, De Oliveira L, Tourneret A, Costes-Martineau V, Cacheux V, Szablewski V. Systemic, primary cutaneous, and breast implant-associated ALK-negative anaplastic large-cell lymphomas present similar biologic features despite distinct clinical behavior. Virchows Arch 2019; 475:163-174. [PMID: 30953147 DOI: 10.1007/s00428-019-02570-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 03/19/2019] [Accepted: 03/27/2019] [Indexed: 11/25/2022]
Abstract
Despite distinct clinical presentation and outcome, systemic, primary cutaneous, and breast implant-associated anaplastic large cell lymphomas (S-, PC-, BI-ALCL) ALK-negative (ALK-) show similar histopathological features including the presence of the "hallmark" cells with horseshoe-shaped nuclei and CD30 protein expression. The purpose was to better characterize these three entities using immunohistochemistry and FISH (Fluorescent in situ hybridization) to identify biomarkers differently expressed and that might be involved in their pathogenesis. Twenty-two S-ALCL ALK-, 13 PC-ALCL, and 2 BI-ALCL were included. Cases were tested for P53, P63, MUM1, MYC, GATA3, p-STAT3, PD1, and PDL1 protein expression and DUP22, TP53, TP63, MYC, and PDL1 chromosomal aberrations. As expected, S-ALCL ALK- patients had adverse outcome compare to PC and BI-ALCL. No difference was observed between the three groups concerning protein expression except for MUM1 that was significantly more frequently expressed in S-ALCL ALK- compared to PC-ALCL. In particular, constitutive activation of the STAT3 pathway and PDL1/PD1 immune-checkpoint expression was present in the three entities. TP53 deletion and PDL1 gene amplification were the commonest cytogenetic alterations and were present in the three entities. None of the studied biological parameters was associated with prognosis. Despite distinct clinical behavior, S-ALCL ALK-, PC-ALCL, and BI-ALCL share similar biological features. Larger series should be investigated with the current approach to determine more precisely the activity and the prognostic value of these biomarkers and pathways in each group.
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Affiliation(s)
- Anna Gerbe
- Département de Biopathologie Cellulaire et Tissulaire des Tumeurs, CHU Montpellier, Hôpital Gui De Chauliac, 34275, Montpellier, France
- Faculté de Médecine, Université Montpellier, 2 rue école de Médecine, 34060, Montpellier, France
| | - Melissa Alame
- Faculté de Médecine, Université Montpellier, 2 rue école de Médecine, 34060, Montpellier, France
- Département d'Hématologie biologique, CHU Montpellier, Hôpital Saint Eloi, 34275, Montpellier, France
| | - Olivier Dereure
- Faculté de Médecine, Université Montpellier, 2 rue école de Médecine, 34060, Montpellier, France
- Département de Dermatologie, CHU Montpellier, Hôpital Saint Eloi, 34275, Montpellier, France
| | - Samia Gonzalez
- Département de Pathologie, CHU Nîmes, Carémeau, 30009, Nîmes, France
| | | | - Ariane Tempier
- Département de Biopathologie Cellulaire et Tissulaire des Tumeurs, CHU Montpellier, Hôpital Gui De Chauliac, 34275, Montpellier, France
| | - Laura De Oliveira
- Département de Biopathologie Cellulaire et Tissulaire des Tumeurs, CHU Montpellier, Hôpital Gui De Chauliac, 34275, Montpellier, France
| | - Alicia Tourneret
- Département de Biopathologie Cellulaire et Tissulaire des Tumeurs, CHU Montpellier, Hôpital Gui De Chauliac, 34275, Montpellier, France
- Faculté de Médecine, Université Montpellier, 2 rue école de Médecine, 34060, Montpellier, France
| | - Valérie Costes-Martineau
- Département de Biopathologie Cellulaire et Tissulaire des Tumeurs, CHU Montpellier, Hôpital Gui De Chauliac, 34275, Montpellier, France
- Faculté de Médecine, Université Montpellier, 2 rue école de Médecine, 34060, Montpellier, France
| | - Valère Cacheux
- Faculté de Médecine, Université Montpellier, 2 rue école de Médecine, 34060, Montpellier, France
- Département d'Hématologie biologique, CHU Montpellier, Hôpital Saint Eloi, 34275, Montpellier, France
| | - Vanessa Szablewski
- Département de Biopathologie Cellulaire et Tissulaire des Tumeurs, CHU Montpellier, Hôpital Gui De Chauliac, 34275, Montpellier, France.
- Faculté de Médecine, Université Montpellier, 2 rue école de Médecine, 34060, Montpellier, France.
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Anaplastic Lymphoma Kinase in Cutaneous Malignancies. Cancers (Basel) 2017; 9:cancers9090123. [PMID: 28895885 PMCID: PMC5615338 DOI: 10.3390/cancers9090123] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 09/05/2017] [Accepted: 09/10/2017] [Indexed: 12/22/2022] Open
Abstract
Anaplastic lymphoma kinase (ALK) is a receptor tyrosine kinase that has been implicated in the pathogenesis of a variety of neoplasms. As suggested by its name, ALK was first described as part of a translocation product in cases of anaplastic large-cell lymphoma, with other genetic and cytogenetic ALK mutations subsequently coming to attention in the development of many other hematologic and solid organ malignancies. ALK has now been shown to play a role in the pathogenesis of several cutaneous malignancies, including secondary cutaneous systemic anaplastic large-cell lymphoma (ALCL) and primary cutaneous ALCL, melanoma, spitzoid tumors, epithelioid fibrous histiocytoma, Merkel cell carcinoma, and basal cell carcinoma. The characterization of ALK-positivity in these cutaneous malignancies presents exciting opportunities for utilizing ALK-targeted inhibitors in the treatment of these diseases.
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Effectiveness of low-dose radiation for primary cutaneous anaplastic large cell lymphoma. Adv Radiat Oncol 2017; 2:363-369. [PMID: 29114604 PMCID: PMC5605318 DOI: 10.1016/j.adro.2017.06.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 06/06/2017] [Accepted: 06/08/2017] [Indexed: 11/22/2022] Open
Abstract
Primary cutaneous anaplastic large cell lymphoma (pcALCL) is conventionally treated with radiation therapy (RT) doses ≥30 Gy. In a series of 21 patients with pcALCL, responses were examined after a range of RT doses: ≤20 Gy, 20 to 29 Gy, and ≥30 Gy. Three-year freedom from local relapse was 100%, 86%, and 100%, respectively (P = .28). Low-dose RT appeared to be an acceptable approach for local control in the setting of the indolent, chronic course of pcALCL in this series. Purpose Primary cutaneous anaplastic large cell lymphoma (pcALCL) is conventionally treated with radiation therapy (RT) doses ≥30 GGy, but effectiveness of lower doses is unclear. We compared responses after a range of RT doses for pcALCL. Methods and materials From 1999 through 2015, 45 lesions in 21 patients met clinicopathologic pcALCL diagnostic criteria and were treated with RT (<20 Gy, 20-29 Gy, or ≥30 Gy dose). Complete clinical (CR) and partial responses (PR) were compared by dose using Fisher exact test. Progression-free and overall survivals were calculated using the Kaplan-Meier method. Results Forty-two percent of lesions were treated with <20 Gy, 22% with 20 to 29 Gy, and 35% with ≥30 Gy. Within 12 weeks, 100% responded, with 67% CR and 33% PR; by last follow-up, 87% achieved CR and 13% PR (no difference by RT dose; P = .84). Three-year freedom from local relapse was 100%, 86%, and 100% with <20 Gy, 20 to 29 Gy, and ≥30 Gy, respectively (P = .28). Many patients ultimately demonstrated other cutaneous or systemic relapse, with 55% 3-year and 29% 10-year progression-free survival. Overall survival at 10 years was 59%, with 2 deaths from complications of disease. Conclusions Low-dose RT offered excellent local control in the setting of the indolent, chronic course of pcALCL in this patient cohort.
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Radiation Therapy for Primary Cutaneous Anaplastic Large Cell Lymphoma: An International Lymphoma Radiation Oncology Group Multi-institutional Experience. Int J Radiat Oncol Biol Phys 2016; 95:1454-1459. [PMID: 27315663 DOI: 10.1016/j.ijrobp.2016.03.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 03/07/2016] [Accepted: 03/17/2016] [Indexed: 01/22/2023]
Abstract
PURPOSE To collect response rates of primary cutaneous anaplastic large cell lymphoma, a rare cutaneous T-cell lymphoma, to radiation therapy (RT), and to determine potential prognostic factors predictive of outcome. METHODS AND MATERIALS The study was a retrospective analysis of patients with primary cutaneous anaplastic large cell lymphoma who received RT as primary therapy or after surgical excision. Data collected include initial stage of disease, RT modality (electron/photon), total dose, fractionation, response to treatment, and local recurrence. Radiation therapy was delivered at 8 participating International Lymphoma Radiation Oncology Group institutions worldwide. RESULTS Fifty-six patients met the eligibility criteria, and 63 tumors were treated: head and neck (27%), trunk (14%), upper extremities (27%), and lower extremities (32%). Median tumor size was 2.25 cm (range, 0.6-12 cm). T classification included T1, 40 patients (71%); T2, 12 patients (21%); and T3, 4 patients (7%). The median radiation dose was 35 Gy (range, 6-45 Gy). Complete clinical response (CCR) was achieved in 60 of 63 tumors (95%) and partial response in 3 tumors (5%). After CCR, 1 tumor recurred locally (1.7%) after 36 Gy and 7 months after RT. This was the only patient to die of disease. CONCLUSIONS Primary cutaneous anaplastic large cell lymphoma is a rare, indolent cutaneous lymphoma with a low death rate. This analysis, which was restricted to patients selected for treatment with radiation, indicates that achieving CCR was independent of radiation dose. Because there were too few failures (<2%) for statistical analysis on dose response, 30 Gy seems to be adequate for local control, and even lower doses may suffice.
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Jepsen ME, Gniadecki R. Treatment of primary cutaneous anaplastic large cell lymphoma with superficial x-rays. Dermatol Reports 2015; 7:5888. [PMID: 25918620 PMCID: PMC4387335 DOI: 10.4081/dr.2015.5888] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Accepted: 02/25/2014] [Indexed: 11/23/2022] Open
Abstract
The optimal radiation schedule for primary cutaneous anaplastic lymphoma (PCALCL) has not been investigated. We report here satisfactory outcomes of low-dose (16-20 Gy, 3-5 fractions), superficial X-ray radiation (40-50 kV) in a series of 10 patients with PCALCL. Only 1 patient developed a local relapse during the median observation time of 25 months; complete remission was recorded in the other patients. This observation indicates that superficial, low dose X-ray therapy may provide a cost-effective alternative to the traditional 35-45 Gy schedules.
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Affiliation(s)
| | - Robert Gniadecki
- Department of Dermatology, Bispebjerg Hospital , Denmark ; Faculty of Health Sciences, Copenhagen University , Denmark
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Klemke CD. Cutaneous lymphomas. J Dtsch Dermatol Ges 2014; 12:7-28; quiz 29-30. [PMID: 24393310 DOI: 10.1111/ddg.12237] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Accepted: 09/15/2013] [Indexed: 12/11/2022]
Abstract
Primary cutaneous lymphomas are extranodal non-Hodgkin lymphomas. They are classified into the two main groups of primary cutaneous T- and B-cell lymphomas. Very rare cases are derived from NK or plasmacytoid dendritic cells. The annual incidence is 1/100,000. Two-thirds of the patients have primary cutaneous T-cell lymphoma, and the remaining one-third have primary cutaneous B-cell lymphoma. Over the years, tremendous progress has been made regarding the diagnostics and classification of cutaneous lymphomas. An exact classification of cutaneous lymphomas is of great importance for the patient, because the different skin lymphomas have very different prognoses and require different therapeutic regimens. The basis for making a diagnosis is a clinical-pathological correlation, including the use of several immunohistochemical markers and molecular biological methods. Treatment of cutaneous lymphoma is adapted to the type of lymphoma and disease stage. First-line therapy consists of treatments that target the skin. Systemic treatment is used in advanced disease. Many targeted therapies have been introduced into routine clinical care in recent years. This review presents an up-to-date approach to the diagnosis and treatment of primary cutaneous lymphomas.
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Affiliation(s)
- Claus-Detlev Klemke
- Department of Dermatology, Venereology and Allergy, Medical Faculty of Mannheim, Ruprecht-Karls University Heidelberg, Mannheim, Germany
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Silva Dos Santos L, Drummond MR, da Costa França AFE, Cintra ML, Ferreira Velho PEN. Paraffin-embedded tissue: an alternative to Bartonella sp. infection diagnosis. J Dtsch Dermatol Ges 2013; 16:1147-1148. [PMID: 24251729 DOI: 10.1111/ddg.13607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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