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Naceur A, Bienvenue C, Romano P, Chilian C, Carrier JF. Extending deterministic transport capabilities for very-high and ultra-high energy electron beams. Sci Rep 2024; 14:2796. [PMID: 38307920 PMCID: PMC11226718 DOI: 10.1038/s41598-023-51143-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 12/31/2023] [Indexed: 02/04/2024] Open
Abstract
Focused Very-High Energy Electron (VHEE, 50-300 MeV) and Ultra-High Energy Electron (UHEE, > 300 MeV) beams can accurately target both large and deeply seated human tumors with high sparing properties, while avoiding the spatial requirements and cost of proton and heavy ion facilities. Advanced testing phases are underway at the CLEAR facilities at CERN (Switzerland), NLCTA at Stanford (USA), and SPARC at INFN (Italy), aiming to accelerate the transition to clinical application. Currently, Monte Carlo (MC) transport is the sole paradigm supporting preclinical trials and imminent clinical deployment. In this paper, we propose an alternative: the first extension of the nuclear-reactor deterministic chain NJOY-DRAGON for VHEE and UHEE applications. We have extended the Boltzmann-Fokker-Planck (BFP) multigroup formalism and validated it using standard radio-oncology benchmarks, complex assemblies with a wide range of atomic numbers, and comprehensive irradiation of the entire periodic table. We report that [Formula: see text] of water voxels exhibit a BFP-MC deviation below [Formula: see text] for electron energies under [Formula: see text]. Additionally, we demonstrate that at least [Formula: see text] of voxels of bone, lung, adipose tissue, muscle, soft tissue, tumor, steel, and aluminum meet the same criterion between [Formula: see text] and [Formula: see text]. For water, the thorax, and the breast intra-operative benchmark, typical average BFP-MC deviations of [Formula: see text] and [Formula: see text] were observed at [Formula: see text] and [Formula: see text], respectively. By irradiating the entire periodic table, we observed similar performance between lithium ([Formula: see text]) and cerium ([Formula: see text]). Deficiencies observed between praseodymium ([Formula: see text]) and einsteinium ([Formula: see text]) have been reported, analyzed, and quantified, offering critical insights for the ongoing development of the Evaluated Nuclear Data File mode in NJOY.
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Affiliation(s)
- Ahmed Naceur
- École Polytechnique, SLOWPOKE Nuclear Reactor Laboratory, Nuclear Engineering Institute, Montréal, H3T1J4, Canada.
- CRCHUM, Centre hospitalier de l'Université de Montréal, Montréal, H2L4M1, Canada.
| | - Charles Bienvenue
- École Polytechnique, Engineering Physics Department, Biomedical Engineering Institute, Montréal, H3T1J4, Canada
| | - Paul Romano
- Computational Science Division, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Cornelia Chilian
- École Polytechnique, SLOWPOKE Nuclear Reactor Laboratory, Nuclear Engineering Institute, Montréal, H3T1J4, Canada
| | - Jean-François Carrier
- Department of Physics, Université de Montréal, Montréal, H3T1J4, Canada
- CRCHUM, Centre hospitalier de l'Université de Montréal, Montréal, H2L4M1, Canada
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Momeni N, Ali Boroomand M, Roozmand Z, Namiranian N, Hamzian N. Normal tissue complication probability of acute eyelids erythema following radiotherapy of head and neck cancers and skull-base tumors. Phys Med 2023; 112:102621. [PMID: 37329741 DOI: 10.1016/j.ejmp.2023.102621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 06/04/2023] [Accepted: 06/06/2023] [Indexed: 06/19/2023] Open
Abstract
PURPOSE Radiation therapy is broadly used as one of the main treatment methods for patients with head and neck cancers and skull base tumors. However, it can lead to normal tissue complications. Therefore, this study aimed to model normal tissue complication probability (NTCP) of eyelid skin erythema after radiation therapy. METHODS The dataset of 45 patients with head and neck and skull base tumors was prospectively collected from their dose-volume histograms (DVHs). Grade 1 + eyelid skin erythema based on the Common Terminology Criteria for Adverse Events (CTCAE 4.0) was evaluated as the endpoint after a three-month follow-up. The Lyman-Kutcher-Burman (LKB) radiobiological model was developed based on generalized equivalent uniform dose (gEUD). Model parameters were calculated by maximum likelihood estimation. Model performance was evaluated by ROC-AUC, Brier score and Hosmer-Lemeshow test. RESULTS After three months of follow-up, 13.33% of patients experienced eyelids skin erythema grade 1 or more. The parameters of the LKB model were: TD50 = 30 Gy, m = 0.14, and n = 0.10. The model showed good predictive performance with ROC-AUC = 0.80 (CI:0.66-0.94) and a Brier score of 0.20. CONCLUSIONS In this study, NTCP of eyelid skin erythema was modeled based on the LKB radiobiological model with good predictive performance.
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Affiliation(s)
- Nastaran Momeni
- Department of Medical Physics, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammad Ali Boroomand
- Clinical oncology department, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Zahra Roozmand
- Department of Medical Physics, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Nasim Namiranian
- Diabetes research center of Alikhani, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Nima Hamzian
- Department of Medical Physics, School of Medicine, Shahid Sadoughi Universi of Medical Sciences, Yazd, Iran.
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Abstract
Purpose of review To review and update the latest findings in diagnosis and management of ocular surface squamous neoplasia (OSSN). Recent findings OSSN is the most common anterior segment neoplastic disease process. Several ocular surface imaging techniques have been developed for the early diagnosis and management of clinical and subclinical ocular surface squamous neoplasia, including high-resolution optical coherence tomography (HR-OCT), in vivo confocal microscopy, and ultrasound biomicroscopy. Treatment modalities include both surgical and medical management, with a recent trend towards primary and adjunctive pharmacotherapy. Summary There is increasing use of HR-OCT for the diagnosis and monitoring of clinical and subclinical OSSN lesions. Topical pharmacotherapy agents, including interferon α-2b, 5-fluorouracil, and mitomycin C, have demonstrable efficacy in the treatment of OSSN and their use may be dictated based upon tumor factors, patient factors, cost, and side effect profile. Both surgical excision and adjunctive topical medications have excellent success, with the favored treatment method trending towards topical pharmacotherapy as primary therapy.
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Kounatidou NE, Palioura S. An update in the management of ocular surface squamous neoplasia. EXPERT REVIEW OF OPHTHALMOLOGY 2021. [DOI: 10.1080/17469899.2021.1932465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Meel R, Dhiman R, Kashyap S, Agrawal S, Pushker N, Bakhshi S. Systemic neoadjuvant chemotherapy in non-resectable invasive squamous cell carcinoma of ocular surface. Eur J Ophthalmol 2021; 32:11206721211014376. [PMID: 33926247 DOI: 10.1177/11206721211014376] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND/OBJECTIVES The conventional modality for management of advanced invasive ocular surface squamous neoplasia (OSSN) (AJCC grade T4 and T3 with fornicial involvement) is surgical excision which is not only challenging in terms of ability to achieve tumor free margins and tissue reconstruction but also has high morbidity. We describe the use of systemic neoadjuvant chemotherapy (NAC) in cases of advanced invasive OSSN. SUBJECTS/METHODS This is a retrospective case series. Five cases of histopathologically proven advanced OSSN that were challenging to manage with surgical excision or required exenteration were treated with NAC. Demographic details, previous treatment history, location and extent of tumor, imaging findings, number of cycles and duration of NAC, response to treatment, and final outcome on follow-up were noted. RESULTS A remarkable response to NAC was seen in 4/5(80%) cases. Complete regression was seen in 2/5, partial regression in 2/5, and no response in 1/5 cases. In 75% (3/4) cases who showed response to NAC, minimal or no surgery was required. Exenteration was avoided in 2/3 cases with orbital extension. CONCLUSION NAC appears to be an exciting option for management of surgically challenging cases of invasive OSSN and may be helpful in avoiding orbital exenteration. However, more studies are required to explore this treatment option.
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Affiliation(s)
- Rachna Meel
- Oculoplasty and Ocular Oncology Services, All India Institute of Medical Sciences, New Delhi, India
- Dr. R. P. Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Rebika Dhiman
- Oculoplasty and Ocular Oncology Services, All India Institute of Medical Sciences, New Delhi, India
- Dr. R. P. Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Seema Kashyap
- Dr. R. P. Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
- Ocular Pathology Services, All India Institute of Medical Sciences, New Delhi, India
| | - Sahil Agrawal
- Oculoplasty and Ocular Oncology Services, All India Institute of Medical Sciences, New Delhi, India
- Dr. R. P. Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Neelam Pushker
- Oculoplasty and Ocular Oncology Services, All India Institute of Medical Sciences, New Delhi, India
- Dr. R. P. Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Sameer Bakhshi
- Department of Medical Oncology, All India Institute of Medical Sciences, New Delhi, India
- Dr. B.R.A Institute Rotary Cancer Hospital, All India Institute of Medical Sciences, New Delhi, India
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Single-Fraction Adjuvant Electronic Brachytherapy after Resection of Conjunctival Carcinoma. Cancers (Basel) 2021; 13:cancers13030454. [PMID: 33530293 PMCID: PMC7865874 DOI: 10.3390/cancers13030454] [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: 10/28/2020] [Revised: 01/19/2021] [Accepted: 01/22/2021] [Indexed: 11/30/2022] Open
Abstract
Simple Summary A centralized distribution of specialized oncologic facilities is a widely repeated situation in many latitudes around the globe, limiting the patient’s access options to specialized treatments. Strategies to alleviate the overpassed attention capacities in low- and middle-income countries, such as Peru, have driven the attention of practitioners towards hypofractionated treatments. In order to shorten treatment times and hospital visits, treating ocular conjunctival carcinoma with a single-fraction electronic brachytherapy approach arises as a novel option, which further increases the current therapeutic arsenal against this entity. We aim to report the clinical findings of this treatment modality, in terms of feasibility, oncological outcomes and toxicity profile, while opening a new possibility of diminishing patient- and health care-related financial impact. Abstract A retrospective study was performed to assess the outcomes of a single-fraction adjuvant electronic brachytherapy (e-BT) approach for patients with squamous cell conjunctival carcinoma (SCCC). Forty-seven patients with T1–T3 SCCC were included. All patients underwent surgery followed by a single-fraction adjuvant e-BT with a porTable 50-kV device. Depending on margins, e-BT doses ranged between 18 to 22 Gy prescribed at 2 mm depth, resembling equivalent doses in 2 Gy (EQD2) per fraction of 46–66 Gy (α/β ratio of 8–10 Gy and a relative biological effect (RBE) of 1.3). The median age was 69 (29–87) years. Most tumors were T1 (40.4%) or T2 (57.5%) with a median size of 7 mm (1.5–20). Margins were positive in 40.4% of cases. The median time from surgery to e-BT was nine weeks (0–37). After a median follow-up of 24 (17–40) months, recurrence occurred in only two patients (6 and 7 months after e-BT), yielding a median disease-free survival (DFS) of 24 (6–40) months and DFS at two years of 95.7%. Acute grade 2 conjunctivitis occurred in 25.5%. E-BT is a safe and effective for SCCC treatment, with clinical and logistic advantages compared to classical methods. Longer follow-up and prospective assessment are warranted.
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Ting DSJ, Rana-Rahman R, Ng JY, Wilkinson DJP, Ah-Kine D, Patel T. Clinical Spectrum and Outcomes of Ocular and Periocular Complications following External-Beam Radiotherapy for Inoperable Malignant Maxillary Sinus Tumors. Ocul Oncol Pathol 2020; 7:36-43. [PMID: 33796515 DOI: 10.1159/000511011] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 08/19/2020] [Indexed: 12/15/2022] Open
Abstract
Purpose To highlight the clinical spectrum, management, and outcomes of ocular/periocular complications following high-dose external-beam radiotherapy (EBRT) for inoperable malignant maxillary sinus-involving tumors (MMST). Methods A retrospective, interventional case series. All patients who were diagnosed with inoperable MMST (with orbital involvement) and treated with high-dose fractionated EBRT (65 Gy in 30 fractions) at James Cook University Hospital, UK, were included. Results Seven patients with advanced MMST (T4aN0M0-T4bN2cM0) were included and were followed up for 23.8 ± 10.2 months. Severe lid margin disease, dry eye, and neurotrophic keratopathy were universally observed. Other complications included cicatricial conjunctivitis (71%), corneal perforation (57%), limbal stem cell deficiency (LSCD; 43%), glaucoma (29%), and superimposed candida keratitis (14%). Amniotic membrane transplant (AMT; 71%), tarsorrhaphy (43%), tectonic keratoplasty (29%), and evisceration (14%) were warranted. Intact corneal epithelium was observed in all patients and good corrected-distance visual acuity (≥20/60) was observed in 3 (43%) patients at final follow-up. Conclusion High-dose EBRT for inoperable MMST can lead to a wide array of severe ocular/periocular complications. AMT serves as a potentially useful treatment modality to restore the ocular surface integrity after severe radiation keratopathy. We advocate active monitoring for any evolving ophthalmic complications during and after EBRT to enable timely intervention.
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Affiliation(s)
- Darren Shu Jeng Ting
- Academic Ophthalmology, Division of Clinical Neuroscience, School of Medicine, University of Nottingham, Nottingham, United Kingdom.,Department of Ophthalmology, James Cook University Hospital, Middlesbrough, United Kingdom
| | - Romeela Rana-Rahman
- Department of Ophthalmology, James Cook University Hospital, Middlesbrough, United Kingdom
| | - Jia Yu Ng
- Department of Ophthalmology, James Cook University Hospital, Middlesbrough, United Kingdom
| | - David J P Wilkinson
- Department of Radiotherapy and Oncology, James Cook University Hospital, Middlesbrough, United Kingdom
| | - Desiree Ah-Kine
- Department of Ophthalmology, James Cook University Hospital, Middlesbrough, United Kingdom
| | - Trushar Patel
- Department of Ophthalmology, James Cook University Hospital, Middlesbrough, United Kingdom
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Proton beam radiotherapy of locally advanced or recurrent conjunctival squamous cell carcinoma: experience of the CATANA Centre. JOURNAL OF RADIOTHERAPY IN PRACTICE 2020. [DOI: 10.1017/s1460396920000953] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AbstractAim:Conjunctival squamous cell carcinoma (SCC) is a rare tumour of the ocular region and microscopic radical surgical is difficult. There are no single guidelines for therapeutic management and the role of radiation therapy is not clearly defined although conventionally photon or electron beams are used. Proton beam radiotherapy (PBRT) is a new option for a conservative approach and allows good sparing of the organs at risk.Materials and methods:After surgical resection, we collected 15 cases treated at our institution with PBRT. The dose delivered was between 48 and 60 Gy relative biological effectiveness (RBE), with fractions of 12–15 Gy RBE.Results:After an average period of 48 months, the patients achieved excellent disease control (overall survival and disease-free survival: 86·6%), with minimal acute and late toxicity.Findings:In this work, we present our experience on the use of PBRT technique in SCC treatment. A larger sample of patients is needed to draw conclusions about the impact of this treatment on disease recurrence and overall survival.
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Management Issues in Conjunctival Tumours: Ocular Surface Squamous Neoplasia. Ophthalmol Ther 2019; 9:181-190. [PMID: 31760597 PMCID: PMC7054503 DOI: 10.1007/s40123-019-00225-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Indexed: 11/11/2022] Open
Abstract
Ocular surface squamous neoplasia is the most common tumour of the ocular surface. It is a spectrum of disease from intraepithelial dysplasia to invasive squamous cell carcinoma. Recent years have seen an increase in the use of topical chemotherapeutic agents to treat this condition, often as primary treatment without full-thickness biopsy. This practical approach provides a critical appraisal of the evidence base with the goal being to aid the clinician in the management of these patients.
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Santoni A, Thariat J, Maschi C, Herault J, Baillif S, Lassalle S, Peyrichon ML, Salleron J, Caujolle JP. Management of Invasive Squamous Cell Carcinomas of the Conjunctiva. Am J Ophthalmol 2019; 200:1-9. [PMID: 30552889 DOI: 10.1016/j.ajo.2018.11.024] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 11/28/2018] [Accepted: 11/30/2018] [Indexed: 11/20/2022]
Abstract
PURPOSE Ocular surface squamous neoplasia includes a spectrum of diseases from dysplasia to invasive squamous cell carcinoma (SCC) of the conjunctiva. Whether the degree of invasion influences outcomes is debated. We evaluated the outcomes and management of conjunctival carcinomas defined as ≤0.2 mm invasion of the chorion (microinvasive; miSCC) or over (SCC). DESIGN Retrospective case series. METHODS Clinical, tumor, and therapeutic characteristics and outcomes were collected for consecutive patients with histology-proven invasive conjunctival miSCC/SCC treated between 2002 and 2017. RESULTS Patients were 70% men, ≥70 years old (56%), with carcinomas of the bulbar conjunctiva (83.0%). Limbal, corneal, and/or scleral involvement were present in 70.4%, 42.6%, and 27.8%, respectively. Patient characteristics, tumor characteristics, and no-touch surgery rates were similar between the 39 SCC and 15 miSCC. However, mitomycin was performed in 93.3% and 20.5% of miSCC and SCC, respectively (P < .001). Proton therapy was performed in 0% and 92.0% of miSCC and SCC, respectively (P < .001). SCC received mitomycin in case of tumoral resection margins, respectively (P = .018). The 24-month incidence of local relapse was 14.8%, including 20% and 12% for miSCC and SCC, respectively (P = .079). Irradiation was the only prognostic factor associated with a lower risk for local relapse (hazard ratio [0.25]; P = .045). There were 2 cancer-related deaths (2%). Mild/moderate anterior segment complications occurred in one third of the patients. CONCLUSIONS miSCC had slightly worse relapse rates compared with SCC. Postoperative proton therapy, performed in SCC only, was associated with a lower risk for relapse.
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Affiliation(s)
- Alexandra Santoni
- Department of Ophthalmology, Pasteur 2 Teaching Hospital, Nice, France
| | - Juliette Thariat
- Department of Radiation Oncology, Francois Baclesse Cancer ARCHADE Center, Normandie Universite-Unicaen, Caen, France.
| | - Célia Maschi
- Department of Ophthalmology, Pasteur 2 Teaching Hospital, Nice, France
| | - Joel Herault
- Department of Radiation Oncology, Antoine-Lacassagne Cancer Center, Nice, France
| | - Stéphanie Baillif
- Department of Ophthalmology, Pasteur 2 Teaching Hospital, Nice, France
| | - Sandra Lassalle
- Department of Biopathology, Pasteur 2 Teaching Hospital, Nice, France
| | | | - Julia Salleron
- Department of Biostatistics, Institut de Cancérologie de Lorraine, Université de Lorraine, Vandœuvre-lès-Nancy, France
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Abstract
PURPOSE To evaluate the clinical relevance of the American Joint Committee on Cancer (AJCC) classification in the initial management of squamous neoplasia of the conjunctiva. METHODS This retrospective study enrolled 95 histopathologically proven cases of treatment-naive conjunctival squamous neoplasia. Tumors were classified into 4 histological groups: conjunctival intraepithelial neoplasia (CIN) with mild dysplasia (grade 1/3), moderate dysplasia (grade 2/3), severe dysplasia (grade 3/3 or carcinoma in situ), and invasive squamous cell carcinoma (SCC). Clinical findings such as tumor location, largest basal diameter, growth pattern, and adjacent structures involved were recorded. RESULTS CIN was observed in 74 cases (78%), and SCC was noted in 21 cases (22%). Based on the AJCC classification, all the 74 cases of CIN were classified as Tis (tumor in situ). Among the invasive SCC, there were 3 T1 tumors, 2 T2 tumors, and 16 T3 tumors. Complete excision with or without adjuvant therapy was selected as initial treatment in 80% of cases (76/95). Two cases of SCC with scleral invasion were treated using brachytherapy. CONCLUSIONS The AJCC stage does not correlate with the initial treatment of CIN. The AJCC T3 category should be reviewed to differentiate diffuse SCCs with broad surface extension from tumors with deep scleral invasion.
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Comment on: Proposal for a new classification for ocular surface squamous neoplasia. Eye (Lond) 2018; 33:331-332. [PMID: 30337637 DOI: 10.1038/s41433-018-0240-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 10/04/2018] [Indexed: 11/08/2022] Open
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Edgar A, Crutchfield G, Anderson N. Superficial radiotherapy as a treatment alternative for recurrent conjunctival squamous cell carcinoma: a case study. J Med Radiat Sci 2018; 65:240-244. [PMID: 29577676 PMCID: PMC6119735 DOI: 10.1002/jmrs.274] [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] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 02/18/2018] [Indexed: 12/02/2022] Open
Abstract
This case study discusses the use of superficial radiotherapy (SXRT) in the treatment of recurrent conjunctival squamous cell carcinoma (SCC). Conjunctival SCC is often an aggressive cancer, with surgery the current standard of care. There is currently limited literature on alternative treatment options to treat conjunctival SCC recurrences that enable ocular function preservation. Furthermore, the use of SXRT in this setting is not well-reported. Technical feasibility, practical limitations and potential side effects of SXRT (in comparison to other treatment options) are discussed in this case study. This case describes a 62 years old male with limited treatment options following multiple recurrences of conjunctival SCC. He was prescribed a therapeutic SXRT dose of 48.4 Gy in 22 fractions (5 fractions/week). At 6-month follow-up, there was no evidence of residual or recurrent disease, or any significant objective or patient reported treatment induced side effects. This case study provides preliminary evidence for the potential application of SXRT for conjunctival SCC. The benefits reported in this case study warrant further investigation of the applicability of SXRT in a larger patient cohort, with the potential to provide patients with a less invasive treatment alternative for recurrent conjunctival SCC.
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Affiliation(s)
- Amanda Edgar
- Department of Radiation Oncology and Cancer ImagingPeter MacCallum Cancer CentreMelbourneVictoriaAustralia
| | - Gretel Crutchfield
- Department of Radiation Oncology and Cancer ImagingPeter MacCallum Cancer CentreMelbourneVictoriaAustralia
| | - Nigel Anderson
- Department of Radiation Oncology and Cancer ImagingPeter MacCallum Cancer CentreMelbourneVictoriaAustralia
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Chaugule SS, Park J, Finger PT. Topical chemotherapy for giant ocular surface squamous neoplasia of the conjunctiva and cornea: Is surgery necessary? Indian J Ophthalmol 2018; 66:55-60. [PMID: 29283124 PMCID: PMC5778583 DOI: 10.4103/ijo.ijo_590_17] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Purpose: The purpose of this study is to report on the efficacy and safety of topical chemotherapy alone for giant ocular surface squamous neoplasia (OSSN). Methods: In this retrospective, interventional series, 10 eyes with giant OSSN underwent exfoliative biopsy to confirm the diagnosis followed by application of interferon alpha 2b (IFN α2b) and/or 5 fluorouracil, 1% (5FU). Reported outcome measures were tumor response, visual acuity, recurrence, systemic metastasis, and treatment complications. Results: Ten patients (3 female, 7 male) had a mean age of 73 (median, 69; range 40–89) years. Mean tumor diameter was 13.1 (median, 12.3; range 8.2–19.4) mm. Five (50%) eyes were treated with IFN-α2b alone; 1 (10%) with 5-FU alone and 4 (40%) required both IFN-α2b and 5-FU. The mean duration of treatment was 3, 0.5, and 6.4 months for IFN-α2b alone, 5-FU alone, and both IFN-α2b and 5-FU respectively. Complete tumor response was observed in all 10 cases at mean follow-up of 12.8 (median, 11.5; range, 3–25) months. Complications noted were transient irritation and burning (n = 4), dry eyes (n = 2), and transient flu-like symptoms (n = 2). There was no evidence of chemotherapy-related symblepharon, stem cell deficiency, scleral thinning, or corneal opacity. There were no tumor recurrences, and no patient required surgical excision or cryotherapy. Conclusion: Topical chemotherapy was a safe and effective treatment, inducing complete regression in all cases of giant OSSN in this series. There were no sight-limiting complications.
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Affiliation(s)
- Sonal S Chaugule
- Department of Ocular Tumor and Orbital Disease, The New York Eye Cancer Center; Department of Ophthalmology, The New York Eye and Ear Infirmary of Mt. Sinai, New York, NY, USA
| | - Jennifer Park
- Department of Ophthalmology, The New York Eye and Ear Infirmary of Mt. Sinai, New York, NY, USA
| | - Paul T Finger
- Department of Ocular Tumor and Orbital Disease, The New York Eye Cancer Center; Department of Ophthalmology, The New York Eye and Ear Infirmary of Mt. Sinai, New York, NY, USA
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Klefter ON, Rasmussen MLR, Toft PB, Heegaard S. Therapeutic options for conjunctival neoplasia. EXPERT REVIEW OF OPHTHALMOLOGY 2018. [DOI: 10.1080/17469899.2018.1417840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Oliver Niels Klefter
- Department of Ophthalmology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | | | - Peter Bjerre Toft
- Department of Ophthalmology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Steffen Heegaard
- Department of Ophthalmology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
- Department of Pathology, Eye Pathology Section, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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Thariat J, Maschi C, Lanteri S, Peyrichon ML, Baillif S, Herault J, Salleron J, Caujolle JP. Dry Eye Syndrome After Proton Therapy of Ocular Melanomas. Int J Radiat Oncol Biol Phys 2017; 98:142-151. [PMID: 28586953 DOI: 10.1016/j.ijrobp.2017.01.199] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 12/27/2016] [Accepted: 01/09/2017] [Indexed: 11/25/2022]
Abstract
PURPOSE To investigate whether proton therapy (PT) performs safely in superotemporal melanomas, in terms of risk of dry-eye syndrome (DES). METHODS AND MATERIALS Tumor location, DES grade, and dose to ocular structures were analyzed in patients undergoing PT (2005-2015) with 52 Gy (prescribed dose, not accounting for biologic effectiveness correction of 1.1). Prognostic factors of DES and severe DES (sDES, grades 2-3) were determined with Cox proportional hazard models. Visual acuity deterioration and enucleation rates were compared by sDES and tumor locations. RESULTS Median follow-up was 44 months (interquartile range, 18-60 months). Of 853 patients (mean age, 64 years), 30.5% had temporal and 11.4% superotemporal tumors. Five-year incidence of DES and sDES was 23.0% (95% confidence interval [CI] 19.0%-27.7%) and 10.9% (95% CI 8.2%-14.4%), respectively. Multivariable analysis showed a higher risk for sDES in superotemporal (hazard ratio [HR] 5.82, 95% CI 2.72-12.45) and temporal tumors (HR 2.63, 95% CI 1.28-5.42), age ≥70 years (HR 1.90, 95% CI 1.09-3.32), distance to optic disk ≥5 mm (HR 2.71, 95% CI 1.52-4.84), ≥35% of retina receiving 12 Gy (HR 2.98, 95% CI 1.54-5.77), and eyelid rim irradiation (HR 2.68, 95% CI 1.49-4.80). The same risk factors were found for DES. Visual acuity deteriorated more in patients with sDES (0.86 ± 1.10 vs 0.64 ± 0.98 logMAR, P=.034) but not between superotemporal/temporal and other locations (P=.890). Enucleation rates were independent of sDES (P=.707) and tumor locations (P=.729). CONCLUSIONS Severe DES was more frequent in superotemporal/temporal melanomas. Incidence of vision deterioration and enucleation was no higher in patients with superotemporal melanoma than in patients with tumors in other locations. Tumor location should not contraindicate PT.
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Affiliation(s)
- Juliette Thariat
- Proton Therapy Unit, Department of Radiation Therapy, Centre Antoine Lacassagne, Nice, France.
| | - Celia Maschi
- Department of Ophthalmology, Pasteur 2 Hospital, Eye University Clinic, Nice, France
| | - Sara Lanteri
- Department of Ophthalmology, Pasteur 2 Hospital, Eye University Clinic, Nice, France
| | - Marie Laure Peyrichon
- Proton Therapy Unit, Department of Radiation Therapy, Centre Antoine Lacassagne, Nice, France
| | - Stephanie Baillif
- Department of Ophthalmology, Pasteur 2 Hospital, Eye University Clinic, Nice, France
| | - Joel Herault
- Proton Therapy Unit, Department of Radiation Therapy, Centre Antoine Lacassagne, Nice, France
| | - Julia Salleron
- Department of Biostatistics, Institut de Cancérologie de Lorraine, Vandoeuvre les Nancy, France
| | - Jean Pierre Caujolle
- Department of Ophthalmology, Pasteur 2 Hospital, Eye University Clinic, Nice, France
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Nair AG, Kaliki S, Mishra DK, Reddy VA, Naik MN. Neoadjuvant chemotherapy for invasive squamous cell carcinoma of the conjunctiva: A case report. Indian J Ophthalmol 2016; 63:927-9. [PMID: 26862101 PMCID: PMC4784084 DOI: 10.4103/0301-4738.176026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
A 40-year-old male presented with an orbital extension of conjunctival squamous cell carcinoma (SCC). The orbital mass was seen protruding outward from the left palpebral fissure overhanging the lower eyelid, completely obscuring the globe and lower lid. The patient gave a history of excision biopsy, which was histopathologically diagnosed as ocular surface squamous neoplasia. He also gave a history of tumor recurrence, which gradually progressed to assume the form of the presently visible orbital mass. Computed tomography of the orbits showed the mass extending into the left orbit causing superior displacement of the globe. After a negative locoregional and systemic metastatic screening, neoadjuvant intravenous systemic chemotherapy with cisplatin and 5-fluorouracil were initiated in an attempt to reduce the size of the tumor. Three cycles of tri-weekly chemotherapy resulted in a significant reduction of the orbital tumor size with the globe and the lower lid being visible, thus making a lid-sparing orbital exenteration possible. The patient subsequently underwent an orbital exenteration and at 6-month follow-up, the patient was free from local and regional disease. To our knowledge, this is the first reported case where systemic neoadjuvant chemotherapy has been used to reduce the size of invasive SCC with orbital extension, thereby permitting a lid-sparing orbital exenteration.
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Affiliation(s)
| | - Swathi Kaliki
- The Operation Eyesight Universal Institute for Eye Cancer, L V Prasad Eye Institute, Hyderabad, Telangana, India
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Ndlovu N, Ndarukwa S, Kadzatsa W, Rusakaniko S. Evaluation of the radiotherapy management of ocular surface squamous neoplasia in a high HIV prevalence setting- a retrospective review. Infect Agent Cancer 2016; 11:18. [PMID: 27099616 PMCID: PMC4837636 DOI: 10.1186/s13027-016-0064-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 03/04/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND This article evaluates a single institute's radiotherapy management of OSSN, a previously regarded as rare malignancy, for possible future development of strategies to clearly define the role of adjuvant radiotherapy in improving treatment outcomes. MATERIALS AND METHODS A retrospective review of 153 patients treated from January 2003 to December 2009. RESULTS There was no difference in OSSN prevalence by gender (male to female ratio 1.07). Of 80/153 patients tested 79 (98.8 %) were HIV positive. Most patients (62.9 %) had prior orbital exenteration. Moderately and poorly differentiated grade (82.3 %) was associated with significantly higher stage and incidence of positive regional lymph nodes. External beam therapy dose mostly used was 60Gy in 30 fractions at 200 cGy per fraction in 5 fractions per week (34.8 %). (90)Strontium therapy was given to 13.5 % (60Gy in 6 fractions at 10Gy per fraction weekly). Favourable response (complete and partial) was seen in about 80 % of patients associated with higher total doses. Regional lymph node positivity was associated with poorer outcome. CONCLUSION Adjuvant radiotherapy could have an important role in the management of patients presenting with locally advanced OSSN who are mostly HIV positive in developing countries. Prospective studies to evaluate the role of radiotherapy with or without chemotherapy in the management of OSSN in these settings are warranted.
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Affiliation(s)
- Ntokozo Ndlovu
- College of Health Sciences, University of Zimbabwe, Mazowe Street, Harare, Zimbabwe
| | - Sandra Ndarukwa
- Radiotherapy Centre, Parirenyatwa Hospital, Mazowe Street, Harare, Zimbabwe
| | - Webster Kadzatsa
- College of Health Sciences, University of Zimbabwe, Mazowe Street, Harare, Zimbabwe
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Desai SJ, Pruzan NL, Geske MJ, Jeng BH, Bloomer MM, Vagefi MR. Local and Regional Spread of Primary Conjunctival Squamous Cell Carcinoma. Eye Contact Lens 2016; 44 Suppl 1:S312-S315. [PMID: 27058828 DOI: 10.1097/icl.0000000000000264] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Two cases of biopsy-proven conjunctival squamous cell carcinoma (SCC) that developed local and regional spread are described. The cases involved a 65-year-old woman and a 79-year-old man who were initially treated at outside institutions for SCC of the conjunctiva. The patients did not have a history of immune compromise. The female patient presented with direct extension into the lacrimal gland but deferred recommended exenteration. Despite eventual exenteration, she developed metastasis to a neck node 6 months later, which was treated with radiotherapy. The male patient presented with local recurrence and a parotid node metastasis treated with exenteration, parotidectomy, selective neck dissection, and postoperative radiotherapy. Review of the outside pathology of both cases revealed positive tumor margins at the time of original resection. Local control of conjunctival SCC is of critical importance to reduce the risk of orbital extension and regional spread.
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Affiliation(s)
- Shilpa J Desai
- Department of Ophthalmology (S.J.D., N.L.P., M.J.G., M.M.B., M.R.V.), University of California, San Francisco, CA; Department of Ophthalmology (S.J.D., N.L.P., M.J.G., M.M.B., M.R.V.), San Francisco General Hospital, San Francisco, CA; and Department of Ophthalmology and Visual Sciences (B.H.J.), University of Maryland School of Medicine, Baltimore, MD
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Marr BP, Abramson DH, Cohen GN, Williamson MJ, McCormick B, Barker CA. Intraoperative high-dose rate of radioactive phosphorus 32 brachytherapy for diffuse recalcitrant conjunctival neoplasms: a retrospective case series and report of toxicity. JAMA Ophthalmol 2015; 133:283-9. [PMID: 25502420 DOI: 10.1001/jamaophthalmol.2014.5079] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
IMPORTANCE Adjunct treatments for conjunctival malignancies are needed when standard therapy provides limited benefits or fails. OBJECTIVE To describe the results of patients with diffuse conjunctival neoplasms treated with radioactive phosphorus 32 (32P)-impregnated flexible film. DESIGN, SETTING, AND PARTICIPANTS This retrospective case series between January 1, 2010, and January 1, 2013, was conducted at Memorial Sloan-Kettering Cancer Center, a tertiary referral center. The study was conducted on 7 eyes of 6 patients treated for diffuse conjunctival squamous cell carcinoma, sebaceous carcinoma, or lymphoma that had recurrent or residual disease after primary treatment. INTERVENTIONS Patients underwent mapping biopsies and detailed conjunctival drawings to delineate the pathologic extent of the disease. The brachytherapy film used for treatment was the RIC Conformal Source Model 100 (RIC-100, RI Consultants). The RIC-100 is a flexible, thin (approximately 0.5-mm) film made of a polymer chemically bound to 32P. The radioactive 32P film was placed intraoperatively, allowed to stay in place until the prescription dose was reached, and then removed. The median dose at the prescription point (1 mm from the surface of the film) was 15 Gy (range, 5-17 Gy). MAIN OUTCOMES AND MEASURES Patients were tested for best-corrected visual acuity, recurrence-free survival, and adverse events scored by using the Adult Comorbidity Evaluation-27 scale. RESULTS Between 2010 and 2013, 7 eyes of 6 patients were treated. The median age of patients was 70 years. All patients had a recurrent or persistent neoplasm. Four patients with squamous cell carcinoma, 1 with sebaceous carcinoma, and 1 with metachronous bilateral lymphomas were treated. The median treatment time was 19 minutes (range, 10-52 minutes). The median follow-up was 24.9 months (range, 3.1-38.2 months). Recurrence-free survival 24 months after brachytherapy was 75% (95% CI, 19-89.1). Two moderate adverse events and 1 severe adverse event occurred. Visual acuity was stable or improved in 5 of the 7 eyes (ie, better than 20/70 in the 5 patients who retained their treated eye). CONCLUSIONS AND RELEVANCE Our results show the use of an intraoperative high-dose rate of 32P brachytherapy in selected cases of recalcitrant diffuse conjunctival neoplasms. This technique offers a novel adjunct in the treatment of these cancers. Further follow-up and study are warranted.
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Affiliation(s)
- Brian P Marr
- Ophthalmic Oncology Service, Memorial Sloan-Kettering Cancer Center, New York, New York2Department of Ophthalmology, Weill-Cornell Medical School, New York, New York
| | - David H Abramson
- Ophthalmic Oncology Service, Memorial Sloan-Kettering Cancer Center, New York, New York2Department of Ophthalmology, Weill-Cornell Medical School, New York, New York
| | - Gil'ad N Cohen
- Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Matthew J Williamson
- Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Beryl McCormick
- Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Christopher A Barker
- Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York
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Kenawy N, Garrick A, Heimann H, Coupland SE, Damato BE. Conjunctival squamous cell neoplasia: the Liverpool Ocular Oncology Centre experience. Graefes Arch Clin Exp Ophthalmol 2014; 253:143-50. [PMID: 25398663 DOI: 10.1007/s00417-014-2860-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2014] [Revised: 10/28/2014] [Accepted: 11/03/2014] [Indexed: 11/24/2022] Open
Abstract
PURPOSE To report the outcome of patients with conjunctival squamous cell neoplasia (CSCN)--including conjunctival squamous cell carcinoma (SCC), conjunctival squamous intraepithelial neoplasia (C-SIN) and carcinoma in situ (CIS)-treated at the Liverpool Ocular Oncology Centre (LOOC). METHODS Patients treated between January 1993 and September 2011 were identified and categorised as having 'primary' or 'salvage' treatment, according to whether they had undergone a surgical procedure before referral to our centre. Invasive SCC was treated by excision with adjunctive ruthenium plaque radiotherapy. C-SIN or CIS was treated with topical 5-fluorouracil (5-FU), and in a few cases, cryotherapy. RESULTS Primary treatment was administered to 20 patients (16 males, four females). Mean age was 62 years (range, 33-85). Histological examination revealed C-SIN/CIS in ten patients and invasive SCC in nine. Median follow-up was 69 months (range, 34-168). Three patients required further topical chemotherapy for persistent/recurrent C-SIN. Salvage therapy was administered to 21 patients (15 males, six females). Mean age was 63 years (range, 26-82). Histology showed C-SIN/CIS in 11 patients and invasive SCC in ten. Median follow-up was 54.5 months (range, 36-120). At the close of this audit, there was no recurrence of invasive or metastatic disease in either the primary or salvage groups. CONCLUSIONS Our established protocol for treatment of CSCN has proven successful in local tumour control, and avoids ocular complications. We advocate adjunctive radiotherapy in patients with invasive SCC and chemotherapy in C-SIN/CIS. For improved patient outcome, prompt referral to a specialist centre is encouraged.
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Affiliation(s)
- N Kenawy
- Liverpool Ocular Oncology Service, St Paul's Eye Unit, Royal Liverpool University Hospital, Liverpool, L7 8XP, UK,
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Jung HH, Yang JM, Yoon KC. Analysis of Clinical Features and Prognostic Factors of Ocular Surface Squamous Neoplasia. JOURNAL OF THE KOREAN OPHTHALMOLOGICAL SOCIETY 2014. [DOI: 10.3341/jkos.2014.55.4.506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Hyun Ho Jung
- Department of Ophthalmology, Chonnam National University Medical School, Gwangju, Korea
| | - Jee Myung Yang
- Department of Ophthalmology, Chonnam National University Medical School, Gwangju, Korea
| | - Kyung Chul Yoon
- Department of Ophthalmology, Chonnam National University Medical School, Gwangju, Korea
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Refractory Squamous Cell Carcinoma of the Conjunctiva Treated With Subconjunctival Ranibizumab (Lucentis). Ophthalmic Plast Reconstr Surg 2012; 28:85-9. [DOI: 10.1097/iop.0b013e3182392f29] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Squamous carcinoma and dysplasia of the conjunctiva and cornea: an analysis of 101 cases. Ophthalmology 2011; 119:233-40. [PMID: 22189448 DOI: 10.1016/j.ophtha.2011.08.005] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Revised: 07/30/2011] [Accepted: 08/02/2011] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE To evaluate clinical and histopathologic factors of squamous conjunctival neoplasia associated with recurrence. DESIGN Retrospective, clinical case series. PARTICIPANTS One hundred one eyes of 99 patients with squamous conjunctival dysplasia, carcinoma in situ, or squamous cell carcinoma. METHODS Review of the medical records, pathology reports, and color photographs. MAIN OUTCOME MEASURES Demographic information, laterality, tumor size, extension, pathologic diagnosis, seventh edition of the American Joint Committee on Cancer Classification (AJCC) staging system stage, treatment methods, recurrence, and duration of follow-up. RESULTS Malignant squamous conjunctival neoplasia was seen most commonly in males at a median age of 71 years. Recurrences were seen in 12.9% (n = 13/101), with 92.3% occurring 6 to 12 months after primary treatment. Recurrence was not correlated significantly to age, gender, laterality, clinical appearance or focality of the tumor at presentation. However, tumors larger than 5 mm in diameter, tumors extending more than 2 mm onto the cornea, and tumors with local invasion (corneal, scleral, intraocular or orbital invasion) were associated with a higher risk of recurrence. Increasing AJCC T-stage was correlated strongly to the incidence of recurrence (P = 0.0006). Rates were 1.7% for Tis-staged tumors, 0% for T1- and T2-staged tumors, 34.3% for T3-staged tumors, and 50% for T4-staged tumors. Histopathologic diagnosis was correlated to recurrence (P = 0.037). None of the tumors defined histologically as dysplasia showed recurrence, whereas 12.8% of carcinoma in situ tumors and 22.2% of squamous cell carcinoma tumors recurred. Although the overall recurrence rate was 12.9%, the rate for tumors treated primarily at the authors' center was 4%, significantly less than the recurrence rate in previously operated tumors (P = 0.0003). Lymph nodes demonstrated positive results in 1%, and in no patient did distant metastasis develop. CONCLUSIONS Advanced AJCC T-stage, locally invasive tumors, and more pathologically aggressive tumors were at higher risk for recurrence. Inadequate initial therapy also was an important risk factor for recurrence. Treatment strategies should be affected by tumor staging at presentation.
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