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Shin DS, Kim TH, Rah JE, Lee SB, Lim YK, Jeong J, Kim H, Shin D, Son J. Flexible real-time skin dosimeter based on a thin-film copper indium gallium selenide solar cell for electron radiation therapy. Med Phys 2022; 50:2402-2416. [PMID: 36583513 DOI: 10.1002/mp.16191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 11/20/2022] [Accepted: 12/13/2022] [Indexed: 12/31/2022] Open
Abstract
PURPOSE Various dosimeters have been proposed for skin dosimetry in electron radiotherapy. However, one main drawback of these skin dosimeters is their lack of flexibility, which could make accurate dose measurements challenging due to air gaps between a curved patient surface and dosimeter. Therefore, the purpose of this study is to suggest a novel flexible skin dosimeter based on a thin-film copper indium gallium selenide (CIGS) solar cell, and to evaluate its dosimetric characteristics. METHODS The CIGS solar cell dosimeter consisted of (a) a customized thin-film CIGS solar cell and (b) a data acquisition (DAQ) system. The CIGS solar cell with a thickness of 0.33 mm was customized to a size of 10 × 10 mm2 . This customized solar cell plays a role in converting therapeutic electron radiation into electrical signals. The DAQ system was composed of a voltage amplifier with a gain of 1000, a voltage input module, a DAQ chassis, and an in-house software. This system converted the electrical analog signals (from solar cell) to digital signals with a sampling rate of ≤50 kHz and then quantified/visualized the digital signals in real time. We quantified the linearity/ sampling rate effect/dose rate dependence/energy dependence/field size output factor/reproducibility/curvature/bending recoverability/angular dependence of the CIGS solar cell dosimeter in therapeutic electron beams. To evaluate clinical feasibility, we measured the skin point doses by attaching the CIGS solar cell to an anthropomorphic phantom surface (for forehead, mouth, and thorax). The CIGS-measured doses were compared with calculated doses (by treatment planning system) and measured doses (by optically stimulated luminescent dosimeter). RESULTS The normalized signals of the solar cell dosimeter increased linearly as the delivered dose increased. The gradient of the linearly fitted line was 1.00 with an R-square of 0.9999. The sampling rates (2, 10, and 50 kHz) of the solar cell dosimeter showed good performance even at low doses (<50 cGy). The solar cell dosimeter exhibited dose rate independence within 1% and energy independence within 3% error margins. The signals of the solar cell dosimeter were similar (<1%) when penetrating the same side of the CIGS cell regardless of the rotation angle of the solar cell. The field size output factor measured by the solar cell dosimeter was comparable to that measured by the ion chamber. The solar cell signals were similar between the baseline (week 1) and the last time point (week 4). Our detector showed curvature independence within 1.8% (curvatures of <0.10 mm- ) and bending recovery (curvature of 0.10 mm-1 ). The differences between measured doses (CIGS solar cell dosimeter vs. optically stimulated luminescent dosimeter) were 7.1%, 9.6%, and 1.0% for forehead, mouth, and thorax, respectively. CONCLUSION We present the construction of a flexible skin dosimeter based on a CIGS solar cell. Our findings demonstrate that the CIGS solar cell has a potential to be a novel flexible skin dosimeter for electron radiotherapy. Moreover, this dosimeter is manufactured with low cost and can be easily customized to various size/shape, which represents advantages over other dosimeters.
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Affiliation(s)
- Dong-Seok Shin
- Proton Therapy Center, National Cancer Center, Goyang, Republic of Korea
| | - Tae-Ho Kim
- Proton Therapy Center, National Cancer Center, Goyang, Republic of Korea
| | - Jeong-Eun Rah
- Department of Radiation Oncology, Myongji Hospital, Goyang, Republic of Korea
| | - Se Byeong Lee
- Proton Therapy Center, National Cancer Center, Goyang, Republic of Korea
| | - Young Kyung Lim
- Proton Therapy Center, National Cancer Center, Goyang, Republic of Korea
| | - Jonghwi Jeong
- Proton Therapy Center, National Cancer Center, Goyang, Republic of Korea
| | - Haksoo Kim
- Proton Therapy Center, National Cancer Center, Goyang, Republic of Korea
| | - Dongho Shin
- Proton Therapy Center, National Cancer Center, Goyang, Republic of Korea
| | - Jaeman Son
- Department of Radiation Oncology, Seoul National University Hospital, Seoul, Republic of Korea
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Fahimi Monzari S, Geraily G, Aghili M, Toolee H. Evaluation of Dose Distribution in Optimized Stanford Total Skin Electron Therapy (TSET) Technique in Rando Anthropomorphic Phantom using EBT3 Gafchromatic Films. J Biomed Phys Eng 2021; 11:425-434. [PMID: 34458190 PMCID: PMC8385220 DOI: 10.31661/jbpe.v0i0.1035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 10/24/2018] [Indexed: 12/05/2022]
Abstract
Background: The Total Skin Electron Therapy (TSET) targets the whole of skin using 6 to 10 MeV electrons in large field size and large Source to Surface Distance (SSD).
Treatment in sleeping position leads to a better distribution of dose and patient comfort. Objective: This study aims to investigate the uniformity of absorbed dose in the sleeping Stanford technique on the Rando phantom using dosimetry. Material and Methods: It is an experimental study which was performed using 6 MeV electron irradiation produced by Varian accelerator in the AP and PA positions with gantry angles of 318/3, 0 and 41/5 degrees,
and RAO, LAO, RPO and LPO with 291/4 gantry angle and 45 degrees of collimator angle in the sleeping position. Results: The results show that the dose uniformity achieved in this technique is in the range of (100 ± 25%) and, the dose accuracy was 6%. Conclusion: Total Skin Electron Therapy (TSET) technique in sleeping position is very suitable for elderly and disabled patients, and meets the required dose uniformity.
Furthermore, the use of a flattening filter is recommended for the more dose distribution uniformity.
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Affiliation(s)
| | - Ghazale Geraily
- PhD, Department of Medical Physics, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Aghili
- MD, Oncology Specialist, Cancer Institute of Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Heydar Toolee
- PhD, Department of Anatomy, Tehran University of Medical Sciences, Tehran, Iran
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Total skin electron beam therapy for primary cutaneous T-cell lymphomas: clinical characteristics and outcomes in a Mexican reference center. Rep Pract Oncol Radiother 2020; 25:562-567. [PMID: 32494229 DOI: 10.1016/j.rpor.2020.03.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 03/13/2020] [Accepted: 03/25/2020] [Indexed: 11/24/2022] Open
Abstract
Aim The aim of this study was to assess treatment modalities, treatment response, toxicity profile, disease progression and outcomes in 14 patients with a confirmed diagnosis of primary cutaneous T-cell lymphoma (PCTCL) treated with total skin electron beam therapy (TSEBT). Background Primary cutaneous lymphomas (PCLs) are extranodal non-Hodgkin lymphomas originating in the skin without evidence of extracutaneous disease at diagnosis. Despite advances in systemic and local therapy options, the management of advanced stages remains mostly palliative. Materials and Methods This is a retrospective study of patients with PCTCL, diagnosed and treated in a reference center in Mexico City, analyzing treatment modalities, response to treatment, long-term outcome, and mortality. Results Eight males (57%) and 6 (43%) females were identified. Most patients were stage IVA (n = 5, 36%) followed by stage IB and IIB (28.5% and 21.4%, respectively). Eleven patients received the low-dose RT scheme (12 Gy), 1 patient, the intermediate-dose RT scheme (24 Gy), and 2 patients, the conventional-dose RT scheme (36 Gy). Mean follow-up time was 4.6 years. At first follow-up examination, 6-8 weeks after radiotherapy, the overall response rate (ORR) for the cohort was 85%. The median PFS for the whole cohort was 6 months. Conclusion This study reinforces the role of TSEBT when compared with other treatment modalities and novel agents. Low-dose TSEBT is now widely used because of the opportunity for retreatment.
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Key Words
- CI, Confidence interval
- CR, Complete response
- Cutaneous lymphoma
- EORTC, European Organisation for Research and Treatment of Cancer
- LCT, Large cell transformation
- LPD, Lymphoproliferative disorder
- MF, Mycosis fungoides
- Mycosis fungoides
- NHL, Non-Hodgkin lymphomas
- ORR, Overall response rate
- OS, Overall survival
- PCL, Primary cutaneous lymphoma
- PCTCL, Primary cutaneous T-cell lymphomas
- PFS, Progression-free survival
- RT, Radiotherapy
- SD, Standard deviation
- SS, Sézary syndrome
- Sézary syndrome
- TSEBT, Total skin electron beam therapy
- Total skin electron beam therapy.
- UV, Ultraviolet
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Lack of Durable Remission with Conventional-Dose Total Skin Electron Therapy for the Management of Sezary Syndrome and Multiply Relapsed Mycosis Fungoides. Cancers (Basel) 2019; 11:cancers11111758. [PMID: 31717353 PMCID: PMC6895845 DOI: 10.3390/cancers11111758] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 10/31/2019] [Accepted: 11/02/2019] [Indexed: 02/08/2023] Open
Abstract
Mycosis fungoides (MF) and Sezary syndrome (SS) are multi-relapsing, morbid, cutaneous T-cell lymphomas. Optimal treatment sequencing remains undefined. Total skin electron therapy (TSE) is a highly technical, skin-directed treatment, uniquely producing symptom-free and treatment-free intervals. Recent publications favour low-dose TSE for reduced toxicity, but early data support conventional-dose TSE (cdTSE) for longer disease control. Patient selection requires weighing-up tolerability against response durability. We investigated duration of benefit from cdTSE in patients with poorer prognosis diseases: SS and heavily pre-treated MF. Endpoints were overall survival, and “time to next treatment” (TTNT) as surrogate for clinical benefit duration. Seventy patients (53 MF, 17 SS) were eligible: median prior treatments, 4; median cdTSE dose, 30 Gy; median follow-up, 5.8 years. SS patients had worse prognosis (HR = 5.0, p < 0.001) and shorter TTNT (HR = 4.5, p < 0.001) than MF patients; median TTNT was only 3.7 months. Heavily pre-treated MF patients had inferior prognosis (HR = 1.19 per additional line, p = 0.005), and shorter TTNT (HR = 1.13 per additional line, p = 0.031). Median TTNT for MF patients with ≥3 prior treatments was 7.1 months, versus 23.2 months for 0–2 prior treatments. In conclusion, cdTSE has a limited role in SS. TTNT is reduced in heavily pre-treated MF patients, suggesting greater benefit when utilized earlier in treatment sequencing.
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Gilson D, Whittaker S, Child F, Scarisbrick J, Illidge T, Parry E, Mohd Mustapa M, Exton L, Kanfer E, Rezvani K, Dearden C, Morris S, McHenry P, Leslie T, Wakelin S, Hunasehally R, Cork M, Johnston G, Chiang N, Worsnop F, Salim A, Buckley D, Petrof G, Callachand N, Flavell T, Salad A. British Association of Dermatologists and U.K. Cutaneous Lymphoma Group guidelines for the management of primary cutaneous lymphomas 2018. Br J Dermatol 2018; 180:496-526. [DOI: 10.1111/bjd.17240] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/14/2018] [Indexed: 02/07/2023]
Affiliation(s)
- D. Gilson
- Leeds Cancer Centre St James's University Hospital Leeds LS9 7TF U.K
| | - S.J. Whittaker
- St John's Institute of Dermatology Guy's and St Thomas NHS Foundation Trust St Thomas’ Hospital London SE1 7EH U.K
| | - F.J. Child
- St John's Institute of Dermatology Guy's and St Thomas NHS Foundation Trust St Thomas’ Hospital London SE1 7EH U.K
| | - J.J. Scarisbrick
- Queen Elizabeth Hospital University Hospital Birmingham Birmingham B15 2TH U.K
| | - T.M. Illidge
- Institute of Cancer Sciences University of Manchester The Christie NHS Foundation Trust Manchester M20 4BX U.K
| | - E.J. Parry
- Tameside Hospital Integrated Care NHS Foundation Trust Ashton‐under‐Lyne OL6 9RW U.K
| | - M.F. Mohd Mustapa
- British Association of Dermatologists Willan House, 4 Fitzroy Square London W1T 5HQ U.K
| | - L.S. Exton
- British Association of Dermatologists Willan House, 4 Fitzroy Square London W1T 5HQ U.K
| | - E. Kanfer
- Haematology Department Hammersmith Hospital Du Cane Road London W12 0HS U.K
| | - K. Rezvani
- The University of Texas MD Anderson Cancer Centre Houston TX U.S.A
| | - C.E. Dearden
- Chronic Lymphocytic Leukaemia (CLL) Unit The Royal Marsden NHS Foundation Trust Sutton SW3 6JJ U.K
| | - S.L. Morris
- Guy's and St Thomas’ NHS Foundation Trust Guy's Hospital London SE1 9RT U.K
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Palliative Radiotherapy for Disfiguring Mycosis Fungoides Lesion: A Key Treatment to Reduce Psychological and Social Impact. Case Rep Dermatol Med 2018; 2018:1762050. [PMID: 30147966 PMCID: PMC6083556 DOI: 10.1155/2018/1762050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 07/18/2018] [Indexed: 11/18/2022] Open
Abstract
Mycosis Fungoides (MF) is a rare disease with a relatively good prognosis at early stage. However, skin lesions can impair quality of life due to extensive skin lesions. In some cases, skin lesions, and especially those of the face, become visible and change the physical appearance of the patients. This aspect can deeply affect patients psychologically and can impact their social life. Here, we report the case of a patient with multiple lesions including a disfiguring lesion arising from the nose. The extent of his skin lesions gave a palliative intent to his treatment project. The patient underwent several lines of chemotherapy and immunotherapy with poor results. He was then referred to our radiotherapy and received localized radiotherapy. Lesions disappeared completely within a few weeks. The patient reported a psychological relief. This case highlights the fact that radiotherapy can be done in a “palliative” intent in order to improve esthetic aspects of lesions that can dramatically impact the psychosocial side of patient's life. Clinicians can consider radiotherapy as treatment of some MF lesions as far as they impair the patient's comfort from a psychological and social point of view.
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Kinoshita-Ise M, Ouchi T, Izumi E, Kawaguchi O, Nagao K, Amagai M, Funakoshi T. Combination of low-dose total skin electron beam therapy and subsequent localized skin electron beam therapy as a therapeutic option for advanced-stage mycosis fungoides. Clin Exp Dermatol 2017; 43:437-440. [PMID: 29266332 DOI: 10.1111/ced.13347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/09/2017] [Indexed: 11/28/2022]
Abstract
Electron beam therapy (EBT) is an established treatment for mycosis fungoides (MF), but evidence for the use of EBT in advanced cutaneous conditions is limited, and optimal scheduling of the regimen for such conditions remains unclear. We report the case of a 44-year-old woman diagnosed with MF with widespread cutaneous lesions, including multiple huge tumours in the craniofacial area. Low-dose total skin (TS)EBT and subsequent localized skin (LS)EBT achieved striking improvements in eruptions. Oral etretinate was also administered during therapy. Our experience implies that combined TSEBT and LSEBT may be worth attempting when a patient presents with both widespread lesions and prominent tumours, even when the tumours are extremely large.
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Affiliation(s)
- M Kinoshita-Ise
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
| | - T Ouchi
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
| | - E Izumi
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
| | - O Kawaguchi
- Department of Radiology, Keio University School of Medicine, Tokyo, Japan
| | - K Nagao
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan.,Dermatology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - M Amagai
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
| | - T Funakoshi
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
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Berg S, Villasenor-Park J, Haun P, Kim EJ. Multidisciplinary Management of Mycosis Fungoides/Sézary Syndrome. Curr Hematol Malig Rep 2017; 12:234-243. [PMID: 28540671 DOI: 10.1007/s11899-017-0387-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
PURPOSE OF REVIEW Diagnosis and management of mycosis fungoides and Sézary syndrome (MF/SS) require accurate clinicopathological correlation and a multidisciplinary approach. We reviewed major advances in the field regarding diagnostic and prognostic tools as well as skin-directed therapies (SDTs) and systemic agents for MF/SS published in the past 2 years. RECENT FINDINGS Improved technology (T-cell receptor high-throughput sequencing) and increased multicenter collaboration (Cutaneous Lymphoma International Consortium) have led to diagnostic/prognostic advances. Concurrently, numerous genomic studies have enhanced understanding of disease pathogenesis. Advances in SDTs include topical resiquimod, a novel potent Toll-like receptor (TLR) agonist; consensus CTCL phototherapy guidelines; and use of low-dose radiation therapy. Novel systemic therapies for advanced disease of note include targeted antibody drug conjugates (brentuximab vedotin), immune checkpoint inhibitors, and allogeneic hematopoietic stem cell transplantation (HSCT). Our "toolbox" to diagnose and treat the spectrum of MF/SS continues to expand. Further characterization of genomic data going forward will enable a rational approach to selecting and combining therapies to improve patient care.
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Affiliation(s)
- Sara Berg
- Penn Cutaneous Lymphoma Program, Department of Dermatology, Perelman Center for Advanced Medicine, Perelman School of Medicine at the University of Pennsylvania, 1st Floor South Pavilion, 3400 Civic Center Boulevard, Philadelphia, PA, 19104, USA
| | - Jennifer Villasenor-Park
- Penn Cutaneous Lymphoma Program, Department of Dermatology, Perelman Center for Advanced Medicine, Perelman School of Medicine at the University of Pennsylvania, 1st Floor South Pavilion, 3400 Civic Center Boulevard, Philadelphia, PA, 19104, USA
| | - Paul Haun
- Penn Cutaneous Lymphoma Program, Department of Dermatology, Perelman Center for Advanced Medicine, Perelman School of Medicine at the University of Pennsylvania, 1st Floor South Pavilion, 3400 Civic Center Boulevard, Philadelphia, PA, 19104, USA
| | - Ellen J Kim
- Penn Cutaneous Lymphoma Program, Department of Dermatology, Perelman Center for Advanced Medicine, Perelman School of Medicine at the University of Pennsylvania, 1st Floor South Pavilion, 3400 Civic Center Boulevard, Philadelphia, PA, 19104, USA.
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Mazzeo E, Rubino L, Buglione M, Antognoni P, Magrini SM, Bertoni F, Parmiggiani M, Barbieri P, Bertoni F. The current management of mycosis fungoides and Sézary syndrome and the role of radiotherapy: Principles and indications. Rep Pract Oncol Radiother 2014; 19:77-91. [PMID: 24936325 PMCID: PMC4054991 DOI: 10.1016/j.rpor.2013.07.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Revised: 06/17/2013] [Accepted: 07/16/2013] [Indexed: 10/26/2022] Open
Abstract
AIM To evaluate the current treatment of mycosis fungoides (MF) and Sézary syndrome (SS) focusing on the role of radiotherapy (RT), its principles and indications, and the perspectives of the novel irradiation technologies. BACKGROUND MF and SS are rare lymphoproliferative diseases whose incidence is increasing. For a long time RT has been used as a single modality or in integrated treatment programs for these diseases. MATERIALS AND METHODS The latest systematic reviews, primary studies and new diagnostic and treatment guidelines on MF and SS were analyzed. Clinical outcomes together with the technical aspects and the role of RT were also evaluated. RESULTS New data are available on pathogenesis, diagnostic criteria, classification and staging procedures for MF and SS and several local and systemic therapies are proposed. Localized RT can cure "minimal stage" MF while total skin electron beam irradiation (TSEI) may cure initial-stage disease and may offer important symptom relief (itch, erythroderma) in a more advanced setting. Despite its efficacy, RT is not largely used, mainly because of some technical difficulties but new RT technologies may be proposed to treat large skin surfaces. CONCLUSIONS New treatment programs offer good results, with median survival of more than 12 years in early-stage MF, but the median survival of 2.5 years or less in advanced stages is still a challenge. RT remains an option for all stages with a good cost/effectiveness ratio in a curative or palliative setting. New RT technologies can overcome some technical problems of treating large skin surfaces.
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Affiliation(s)
- Ercole Mazzeo
- Department of Radiation Oncology, Azienda Ospedaliero-Universitaria Policlinico, Modena, Italy
| | - Laura Rubino
- Department of Radiation Oncology, Azienda Ospedaliero-Universitaria Policlinico, Modena, Italy
| | - Michela Buglione
- Department of Radiation Oncology, Brescia University, Istituto del Radio “O. Alberti”, Brescia, Italy
| | - Paolo Antognoni
- Department of Radiotherapy, Azienda Ospedaliera Universitaria Ospedale di Circolo e Fondazione Macchi, Varese, Italy
| | - Stefano Maria Magrini
- Department of Radiation Oncology, Brescia University, Istituto del Radio “O. Alberti”, Brescia, Italy
| | - Francesco Bertoni
- Department of Radiation Oncology, Brescia University, Istituto del Radio “O. Alberti”, Brescia, Italy
| | - Manuela Parmiggiani
- Department of Radiation Oncology, Azienda Ospedaliero-Universitaria Policlinico, Modena, Italy
| | - Paola Barbieri
- Department of Radiation Oncology, Azienda Ospedaliero-Universitaria Policlinico, Modena, Italy
| | - Filippo Bertoni
- Department of Radiation Oncology, Azienda Ospedaliero-Universitaria Policlinico, Modena, Italy
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10
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Moraes FYD, Carvalho HDA, Hanna SA, Silva JLFD, Marta GN. Literature review of clinical results of total skin electron irradiation (TSEBT) of mycosis fungoides in adults. Rep Pract Oncol Radiother 2013; 19:92-8. [PMID: 24936326 DOI: 10.1016/j.rpor.2013.08.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Revised: 07/11/2013] [Accepted: 08/22/2013] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Mycosis fungoides (MF) is an extranodal, indolent non-Hodgkin lymphoma of T cell origin. Even with the establishment of MF staging, the initial treatment strategy often remains unclear. AIM The aim of this study was to review the clinical results of total skin electron beam therapy (TSEBT) for MF in adults published in English language scientific journals searched in Pubmed/Medline database until December 2012. RESULTS MF is very sensitive to radiation therapy (RT) delivered either by photons or by electrons. In limited patches and/or plaques local electron beam irradiation results in good outcomes besides the fact of not being superior to other modalities. For extensive patches and/or plaques data suggest that TSEBT shows superior response rates. The cutaneous disease presentation is favorably managed with radiotherapy due to its ability to treat the full thickness of deeply infiltrated skin. For generalized erythroderma presentation, TSEBT seems to be an appropriate initial therapy. For advanced disease, palliation, or recurrence after the first radiotherapy treatment course, TSEBT may still be beneficial, with acceptable toxicity. Recommended dose is 30-36 Gy delivered in 6-10 weeks. CONCLUSION TSEBT can be used to treat any stage of MF. It also presents good tumor response with symptoms of relief and a palliative effect on MF, either after previous irradiation or failure of other treatment strategies.
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Affiliation(s)
| | - Heloisa de Andrade Carvalho
- Department of Radiation Oncology, Hospital Sírio-Libânes, São Paulo, SP, Brazil ; Radiotherapy - Department of Radiology and Oncology, Radiology Institute - InRad, Hospital das Clínicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | | | | | - Gustavo Nader Marta
- Department of Radiation Oncology, Hospital Sírio-Libânes, São Paulo, SP, Brazil ; Department of Radiation Oncology, Instituto do Câncer do Estado de São Paulo - ICESP, São Paulo, SP, Brazil
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Abstract
Cutaneous T-cell lymphomas (CTCLs) are a rare group of mature T-cell lymphomas presenting primarily in the skin. The most common subtypes of CTCL are mycosis fungoides and its leukaemic variant Sézary's syndrome. Patients with early-stage disease frequently have an indolent clinical course; however, those with advanced stages have a shortened survival. For the treating physician, the question of how to choose a particular therapy in the management of CTCL is important. These diseases span the disciplines of dermatology, medical oncology and radiation oncology. Other than an allogeneic stem cell transplant, there are no curative therapies for this disease. Hence, many treatment modalities need to be offered to the patient over the course of their life. An accepted treatment approach has been to delay traditional chemotherapy, which can cause excessive toxicity without durable benefit. More conservative treatment strategies in the initial management of CTCL have led to the development of newer biological and targeted therapies. These therapies include biological immune enhancers such as interferon alpha and extracorporeal photopheresis that exert their effect by stimulating an immune response to the tumour cells. Retinoids such as bexarotene have been shown to be effective and well tolerated with predictable adverse effects. The fusion toxin denileukin diftitox targets the interleukin-2 receptor expressed on malignant T cells. Histone deacetylase inhibitors such as vorinostat and romidepsin (depsipeptide) may reverse the epigenetic states associated with cancer. Forodesine is a novel inhibitor of purine nucleoside phosphorylase and leads to apoptosis of malignant T cells. Pralatrexate is a novel targeted antifolate that targets the reduced folate carrier in cancer cells. Lastly, systemic chemotherapy including transplantation is used when rapid disease control is needed or if all other biological therapies have failed. As response rates to most of the biological agents used to treat CTCL are 25-30%, it is also reasonable to consider clinical trials with novel agents if one or two front-line therapies have failed, especially before considering chemotherapy. CTCL is largely an incurable disease with significant morbidity and more active agents are needed.
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Affiliation(s)
- Frederick Lansigan
- Hematology/Oncology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA
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Abstract
Cutaneous T-cell lymphoma (CTCL) accounts for two-thirds of cases of primary cutaneous lymphoma. Most variants of CTCL are indolent lymphoma, the most common being mycosis fungoides. In addition, Sézary syndrome, the leukaemic variant, has an aggressive clinical course. Accurate diagnosis and staging is critical in determining the prognosis of those with CTCL. The tumour, node, metastasis and blood stage needs to be documented and used to determine an overall stage from IA to IVB. Management of patients should be carried out by a multidisciplinary team. A full clinical examination should be made at all visits. Thorough investigations are needed at diagnosis and should be repeated during disease progression to allow initial staging and restaging. Treatment of patients with early-stage disease (IA-IIB) should be limited to skin-directed therapy. More advanced or resistant disease may be treated with systemic therapies such as extracorporeal photopheresis, immunotherapy, monoclonal antibody therapy, novel retinoids or chemotherapy, and where possible, patients should be entered into clinical trials.
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Affiliation(s)
- J J Scarisbrick
- St John's Institute of Dermatology, St Thomas's Hospital, London, UK.
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13
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Whittaker SJ, Marsden JR, Spittle M, Russell Jones R. Joint British Association of Dermatologists and U.K. Cutaneous Lymphoma Group guidelines for the management of primary cutaneous T-cell lymphomas. Br J Dermatol 2004; 149:1095-1107. [PMID: 14696593 DOI: 10.1111/j.1365-2133.2003.05698.x] [Citation(s) in RCA: 182] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- S J Whittaker
- St John's Institute of Dermatology, St Thomas' Hospital, Lambeth Palace Road, London SE1 7EH, U.K.
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14
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Prince HM, McCormack C, Ryan G, O'Keefe R, Seymour JF, Baker C. Management of the primary cutaneous lymphomas. Australas J Dermatol 2004; 44:227-40; quiz 241-2. [PMID: 14616487 DOI: 10.1046/j.1440-0960.2003..x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Cutaneous lymphomas are rare and, although some are a manifestation of systemic lymphoma, the majority arise primarily from the skin. These primary cutaneous lymphomas comprise both T- and B-cell subtypes and represent a wide spectrum of disorders, which at times can be difficult to diagnose and classify. Classical therapeutic strategies include topical corticosteroids, phototherapy, radiotherapy, retinoids, extracorporeal photopheresis, topical chemotherapy, systemic chemotherapy and biological response modifiers. Newer therapies include the synthetic retinoid bexarotene, the immunotoxin conjugate denileukin diftitox, interleukin-12 and monoclonal antibodies such as alemtuzumab and rituximab.
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MESH Headings
- Administration, Topical
- Adrenal Cortex Hormones/therapeutic use
- Antineoplastic Combined Chemotherapy Protocols/administration & dosage
- Biopsy, Needle
- Combined Modality Therapy
- Education, Medical, Continuing
- Female
- Humans
- Immunohistochemistry
- Immunologic Factors/therapeutic use
- Lymphoma, T-Cell, Cutaneous/mortality
- Lymphoma, T-Cell, Cutaneous/pathology
- Lymphoma, T-Cell, Cutaneous/therapy
- Male
- Mycosis Fungoides/mortality
- Mycosis Fungoides/pathology
- Mycosis Fungoides/therapy
- Neoplasm Staging
- Phototherapy/methods
- Prognosis
- Randomized Controlled Trials as Topic
- Risk Assessment
- Sezary Syndrome/mortality
- Sezary Syndrome/pathology
- Sezary Syndrome/therapy
- Skin Neoplasms/mortality
- Skin Neoplasms/pathology
- Skin Neoplasms/therapy
- Survival Analysis
- Treatment Outcome
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Affiliation(s)
- H Miles Prince
- Department of Haematology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.
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15
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Jones G, Wilson LD, Fox-Goguen L. Total skin electron beam radiotherapy for patients who have mycosis fungoides. Hematol Oncol Clin North Am 2003; 17:1421-34. [PMID: 14710893 DOI: 10.1016/s0889-8588(03)00108-4] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
It has taken four decades of basic and clinical research to bring about a consensus process and published report that recognize a TSEB radiotherapy technique that is optimized from several perspectives (see references [2-4, 13]). Short and long-term clinical results with consensus TSEB radiotherapy technique are good. The therapeutic ratio of TSEB radiotherapy is well-defined and is clinically acceptable. Meanwhile, adjuvant PUVA and ECP may significantly improve results, but further data are needed to confirm these preliminary findings (see references [23, 34, 39, 40, 42]).
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Affiliation(s)
- Glenn Jones
- McMaster University, 1200 Main Street West, Hamilton, ON L8N 3Z5, Canada.
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16
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Abstract
Radiation therapy is the most effective single agent for the treatment of mycosis fungoides. There are well-defined dose-response relationships for achieving a complete response as well as the durability of this response. Techniques of electron beam therapy have been developed that permit treatment of the entire skin. Total-skin electron beam therapy is an important form of management, especially for patients who have thick generalized plaque or tumorous disease. Radiation therapy may also be used selectively for treatment of extracutaneous disease.
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Affiliation(s)
- Richard T Hoppe
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, California 94305, USA.
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17
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Abstract
Cutaneous T-cell lymphomas (CTCL) are a group of skin neoplasms that originate from T lymphocytes and are difficult to treat in advanced stages. The present study is aimed at the identification of tumor-specific antigens from a human testis cDNA library using human sera known as the SEREX (serological identification of recombinantly expressed genes) approach. A cDNA library from normal testicle tissue was prepared and approximately 2 million recombinants were screened with sera from Sézary Syndrome and Mycosis fungoides patients. A total of 28 positive clones belonging to 15 different genes/ORFs were identified, including five hitherto unknown sequences. Whereas control sera did not react with most clones, 11-71% sera from CTCL patients were reactive against the identified clones. Expression analysis on 28 normal control and 17 CTCL tissues by reverse transcription-PCR (RT-PCR) and Northern blotting revealed seven ubiquitously distributed antigens, six differentially expressed antigens (several normal tissues were positive), and two tumor-specific antigens that were expressed only in testis and tumor tissues: (i) A SCP-1-like sequence, which has already been detected in various tumors, has been found in one CTCL tumor and four sera of CTCL patients reacted with various SCP-1-like clones and (ii) a new sequence named cTAGE-1 (CTCL-associated antigen 1) was detected in 35% of CTCL tumor tissues and sera of 6/18 patients reacted with this clone. The present study unravels CTCL-associated antigens independent of the T-cell receptor. The SCP-1-like gene and cTAGE-1 were shown to be immunogenic and immunologically tumor-specific and may therefore be candidates for immunotherapy targeting CTCL.
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