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Zhong Q, Yan Y, Li S. Mucosa-associated lymphoid tissue lymphoma of the lacrimal gland: A case report and literature review. Medicine (Baltimore) 2024; 103:e38303. [PMID: 38787969 PMCID: PMC11124633 DOI: 10.1097/md.0000000000038303] [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: 01/24/2024] [Accepted: 04/29/2024] [Indexed: 05/26/2024] Open
Abstract
RATIONALE The most common subtype of primary lymphoma of the ocular adnexa is the mucosa-associated lymphoid tissue (MALT) subtype. MALT lymphoma of the lacrimal gland is relatively rare among the lacrimal gland tumors, and the early clinical symptoms are atypical, which can easily lead to misdiagnosis and missed diagnosis. Here, we report a case of MALT lymphoma of the lacrimal gland and explore its clinical manifestations, pathological characteristics, management, and pathogenesis, with the aim of helping clinicians gain an in-depth understanding of ocular adnexal MALT lymphoma. PATIENT CONCERNS A 60-year-old man presented to our hospital with proptosis and diplopia. The right eye deviated and shifted toward the lower part of the nose. DIAGNOSIS Orbital enhanced magnetic resonance imaging suggested a mass with a maximum cross-section of 3.2 × 2.1 cm. T1 weighted image was isointense, and the enhancement was more uniform and obvious. INTERVENTIONS The right orbital mass was treated surgically, and the final pathology report was MALT lymphoma. After the pathological report was released, the patient was transferred to the hematology department for further diagnosis and no further treatment was given eventually. OUTCOMES Seven months later, the patient did not complain of discomfort. Whole-body positron emission tomography-computed tomography, superficial lymph node examination and orbital magnetic resonance imaging revealed no abnormal changes. LESSONS The clinical manifestations of MALT lymphoma are heterogeneous. Imaging examination is important for assessing the size of the tumor and its relationship with adjacent tissues. Postoperative pathological examination may provide further evidence for the evaluation of the patient's surgical efficacy and prognosis. Management of MALT lymphoma of the lacrimal gland requires a multidisciplinary approach involving ophthalmologists, hematologists, and radiotherapists.
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Affiliation(s)
- Qin Zhong
- Department of Ophthalmology, Zigong First People’s hospital, Zigong, Sichuan Province, China
| | - Yu Yan
- Department of Ophthalmology, Zigong First People’s hospital, Zigong, Sichuan Province, China
| | - ShuangLe Li
- Department of Ophthalmology, Zigong First People’s hospital, Zigong, Sichuan Province, China
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Akyildiz A, Ismayilov R, Rustamova N, Tokatli M, Koc I, Akin S, Kiratli H, Barista I. Comprehensive analysis of orbital lymphoma in a Turkish cohort: clinical characteristics, histological subtypes, treatment modalities, prognostic factors, and implications for management. Ann Hematol 2024; 103:905-915. [PMID: 38057424 DOI: 10.1007/s00277-023-05569-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 11/27/2023] [Indexed: 12/08/2023]
Abstract
The study analysed the clinical characteristics, treatment approaches, and survival outcomes of 97 consecutive patients with orbital lymphoma (OL) over a 25-year period at. The median age of the patients was 57.6 years, and 59.8% (n = 58) were male. Marginal zone lymphoma constitutes the most prevalent subtype, accounting for 67% of cases, whereas other common subtypes include diffuse large B-cell lymphoma, follicular lymphoma, mantle cell lymphoma, Burkitt lymphoma, and T-cell lymphomas. Unilateral involvement was observed in the majority of cases (72.3%). Common clinical presentations included mass (30.9%), swelling (26.8%), and epiphora (11.3%). Of the patients, 7.2% received rituximab alone, 14.4% received radiotherapy alone, 48.5% received chemotherapy, 27.8% received radiotherapy plus rituximab, 22.7% received radiotherapy plus chemotherapy, and 5.2% underwent surgery as the first-line treatment. During a median follow-up of 4.3 years, 15.5% of patients experienced relapse or disease progression. The 5-year and 10-year progression-free survival rates were 84.1% and 79.1%, respectively. This study contributes to our understanding of OLs and provides a foundation for further investigations in this field. Male gender, presence of B symptoms, advanced stage, secondary orbital lymphoma, aggressive histological subtype, and elevated serum lactate dehydrogenase levels were associated with poorer (either inferior or worse) progression-free survival.
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Affiliation(s)
- Arif Akyildiz
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara, Turkey
| | - Rashad Ismayilov
- Department of Internal Medicine, Hacettepe University Medical School, Ankara, Turkey.
| | - Nargiz Rustamova
- Department of Ophthalmology, Hacettepe University Medical School, Ankara, Turkey
| | - Mert Tokatli
- Department of Internal Medicine, Hacettepe University Medical School, Ankara, Turkey
| | - Irem Koc
- Department of Ophthalmology, Hacettepe University Medical School, Ankara, Turkey
| | - Serkan Akin
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara, Turkey
| | - Hayyam Kiratli
- Department of Ophthalmology, Hacettepe University Medical School, Ankara, Turkey
| | - Ibrahim Barista
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara, Turkey
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Tagami M, Kasashima H, Kakehashi A, Yoshikawa A, Nishio M, Misawa N, Sakai A, Wanibuchi H, Yashiro M, Azumi A, Honda S. Stromal area differences with epithelial-mesenchymal transition gene changes in conjunctival and orbital mucosa-associated lymphoid tissue lymphoma. Front Oncol 2024; 14:1277749. [PMID: 38322414 PMCID: PMC10845137 DOI: 10.3389/fonc.2024.1277749] [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: 09/29/2023] [Accepted: 01/05/2024] [Indexed: 02/08/2024] Open
Abstract
Purpose To examine the molecular biological differences between conjunctival mucosa-associated lymphoid tissue (MALT) lymphoma and orbital MALT lymphoma in ocular adnexa lymphoma. Methods Observational case series. A total of 129 consecutive, randomized cases of ocular adnexa MALT lymphoma diagnosed histopathologically between 2008 and 2020.Total RNA was extracted from formalin-fixed paraffin-embedded tissue from ocular adnexa MALT lymphoma, and RNA-sequencing was performed. Orbital MALT lymphoma gene expression was compared with that of conjunctival MALT lymphoma. Gene set (GS) analysis detecting for gene set cluster was performed in RNA-sequence. Related proteins were further examined by immunohistochemical staining. In addition, artificial segmentation image used to count stromal area in HE images. Results GS analysis showed differences in expression in 29 GS types in primary orbital MALT lymphoma (N=5,5, FDR q-value <0.25). The GS with the greatest difference in expression was the GS of epithelial-mesenchymal transition (EMT). Based on this GS change, immunohistochemical staining was added using E-cadherin as an epithelial marker and vimentin as a mesenchymal marker for EMT. There was significant staining of vimentin in orbital lymphoma (P<0.01, N=129) and of E-cadherin in conjunctival lesions (P=0.023, N=129). Vimentin staining correlated with Ann Arbor staging (1 versus >1) independent of age and sex on multivariate analysis (P=0.004). Stroma area in tumor were significant difference(P<0.01). Conclusion GS changes including EMT and stromal area in tumor were used to demonstrate the molecular biological differences between conjunctival MALT lymphoma and orbital MALT lymphoma in ocular adnexa lymphomas.
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Affiliation(s)
- Mizuki Tagami
- Department of Ophthalmology and Visual Sciences, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
- Ophthalmology Department and Eye Center, Kobe Kaisei Hospital, Kobe, Japan
| | - Hiroaki Kasashima
- Molecular Oncology and Therapeutics, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Anna Kakehashi
- Department of Molecular Pathology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
| | - Atsuko Yoshikawa
- Ophthalmology Department and Eye Center, Kobe Kaisei Hospital, Kobe, Japan
| | - Mizuho Nishio
- Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Norihiko Misawa
- Department of Ophthalmology and Visual Sciences, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
| | - Atsushi Sakai
- Department of Ophthalmology and Visual Sciences, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
| | - Hideki Wanibuchi
- Department of Molecular Pathology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
| | - Masakazu Yashiro
- Molecular Oncology and Therapeutics, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Atsushi Azumi
- Ophthalmology Department and Eye Center, Kobe Kaisei Hospital, Kobe, Japan
| | - Shigeru Honda
- Department of Ophthalmology and Visual Sciences, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
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Yang Y, Jin X, Wang Y, Ma R, He W. Clinical characteristics and treatment outcomes of secondary ocular adnexal lymphoma. Clin Exp Ophthalmol 2023; 51:154-161. [PMID: 36326836 DOI: 10.1111/ceo.14189] [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: 07/29/2022] [Revised: 10/10/2022] [Accepted: 10/28/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND To describe the clinical characteristics and treatment outcomes of secondary ocular adnexal lymphoma (OAL), and emphasise the impact of timely biopsy and systemic evaluation on the diagnosis and treatment. METHODS The data of patients with secondary OAL in our hospital from January 2010 to June 2021 were retrospectively reviewed. RESULTS A total of 54 patients (30 men and 24 women) were included in the study. The mean age at presentation was 60 years (median 62 years; range 37-83 years). The main symptoms included ocular mass (74%), periorbital swelling (43%), and proptosis (39%). The main histopathological types were mucosa-associated lymphoid tissue lymphoma (30%), diffuse large B-cell lymphoma (28%), and natural killer/T-cell lymphoma (18%). In particular, three patients exhibited different pathological types of ocular lymphoma compared to previously diagnosed systemic lymphoma. The most common site of ocular and systemic involvement was the orbit (85%) and lymph nodes (56%), respectively, and 25 (46%) patients had occult extraocular lesions. Additionally, the 5-year overall survival rate of the entire cohort was 56%, and significant differences were observed between the three main pathological types and stages of the disease (all p < 0.001). CONCLUSIONS Secondary OAL is a rare disease with a poor prognosis. That the disease is associated with a more aggressive pathological type is well established, indolent lymphoma is not uncommon. Furthermore, OAL and previously diagnosed systemic lymphoma may be pathologically distinct in some patients. Therefore, we recommend a prompt excision biopsy and a thorough systemic evaluation of patients with suspected OAL.
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Affiliation(s)
- Yu Yang
- Department of Ophthalmology, West China Hospital of Sichuan University, Chengdu, China
| | - Xuelian Jin
- Department of Hematology, West China Hospital of Sichuan University, Chengdu, China
| | - Yujiao Wang
- Department of Ophthalmology, West China Hospital of Sichuan University, Chengdu, China
| | - Ruixin Ma
- Department of Ophthalmology, West China Hospital of Sichuan University, Chengdu, China
| | - Weimin He
- Department of Ophthalmology, West China Hospital of Sichuan University, Chengdu, China
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End-to-End Deep-Learning-Based Diagnosis of Benign and Malignant Orbital Tumors on Computed Tomography Images. J Pers Med 2023; 13:jpm13020204. [PMID: 36836437 PMCID: PMC9960119 DOI: 10.3390/jpm13020204] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/16/2023] [Accepted: 01/22/2023] [Indexed: 01/26/2023] Open
Abstract
Determining the nature of orbital tumors is challenging for current imaging interpretation methods, which hinders timely treatment. This study aimed to propose an end-to-end deep learning system to automatically diagnose orbital tumors. A multi-center dataset of 602 non-contrast-enhanced computed tomography (CT) images were prepared. After image annotation and preprocessing, the CT images were used to train and test the deep learning (DL) model for the following two stages: orbital tumor segmentation and classification. The performance on the testing set was compared with the assessment of three ophthalmologists. For tumor segmentation, the model achieved a satisfactory performance, with an average dice similarity coefficient of 0.89. The classification model had an accuracy of 86.96%, a sensitivity of 80.00%, and a specificity of 94.12%. The area under the receiver operating characteristics curve (AUC) of the 10-fold cross-validation ranged from 0.8439 to 0.9546. There was no significant difference on diagnostic performance of the DL-based system and three ophthalmologists (p > 0.05). The proposed end-to-end deep learning system could deliver accurate segmentation and diagnosis of orbital tumors based on noninvasive CT images. Its effectiveness and independence from human interaction allow the potential for tumor screening in the orbit and other parts of the body.
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Safonova TN, Zaitseva GV, Burdenny AM. [The role of miRNA in the pathogenesis of diseases associated with functional dysregulation of the lacrimal gland]. Vestn Oftalmol 2023; 139:112-118. [PMID: 37379117 DOI: 10.17116/oftalma2023139031112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/30/2023]
Abstract
At this time, the mechanism causing lacrimal gland dysfunction is not understood completely. In diseases associated with lacrimal gland involvement (Sjogren's syndrome, sarcoidosis, IgG4-associated disease, etc.) patients have been observed to experience elevated cellular apoptosis, active production of autoantibodies to glandular tissue, increased level of pro-inflammatory cytokines, functional disruption of signaling molecules leading to changes in tear production. Difficulties in differential diagnosis of lacrimal gland dysfunction in above-listed diseases are associated, on the one hand, with similarity of the clinical picture of ophthalmological manifestations, and on the other hand - with complicated morphological interpretation of changes in the glandular tissues. In this view, miRNA is a promising diagnostic and prognostic marker that would help with differential diagnosis as well as with choosing the treatment tactics. Methods of molecular profiling and identification of "molecular phenotypes" of lacrimal gland and ocular surface damage will allow the use of miRNA as biomarkers and prognostic factors for personalized treatment.
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Affiliation(s)
- T N Safonova
- Krasnov Research Institute of Eye Diseases, Moscow, Russia
| | - G V Zaitseva
- Krasnov Research Institute of Eye Diseases, Moscow, Russia
| | - A M Burdenny
- Institute of General Pathology and Pathophysiology, Moscow, Russia
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Shi J, Zhu T, Lin H, Liu Z, Zhou M, Yu Z, Zhou X, Song X, Wang Y, Jia R, Fan X, Zhou Y. Proteotranscriptomics of ocular adnexal B-cell lymphoma reveals an oncogenic role of alternative splicing and identifies a diagnostic marker. J Exp Clin Cancer Res 2022; 41:234. [PMID: 35906682 PMCID: PMC9338531 DOI: 10.1186/s13046-022-02445-8] [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: 04/05/2022] [Accepted: 07/20/2022] [Indexed: 11/10/2022] Open
Abstract
Background Ocular adnexal B-cell lymphoma (OABL) is a rare subtype of non-Hodgkin lymphoma. The molecular characteristics of OABL remain poorly understood. We performed an integrated study to investigate the proteotranscriptome landscape and identify novel molecular characteristics and biomarkers of OABL. Methods Integrated quantitative proteome and transcriptome were performed on 40 OABL 12 idiopathic orbital inflammation, 6 reactive lymphoid hyperplasia, and 13 aesthetic orbital plastic surgery specimens. Complete clinicopathologic and prognostic data of the patients were recorded. Results We identified high global protein-mRNA concordance as a novel characteristic of OABL. High concordance was related to OABL recurrence. By integrated expression profile, motif enrichment and trend analysis, we found that alternative splicing is inflammation-independently dysregulated in OABL. After portraying the aberrant alternative splicing event landscape, we demonstrated the oncogenic role of ADAR, a core splicing regulator that regulates the splicing of Rho GTPase and cell cycle members. We found that ADAR regulates cell proliferation and Rho GTPase inhibitor sensitivity of lymphoma. We identified DNAJC9 as a potential biomarker for OABL in proteomic analyses. Immunohistochemistry and immunofluorescent staining showed the nuclear staining of DNAJC9 was significantly higher in extranodal marginal zone lymphomas compared with inflammation specimens. Conclusions These results provide an integrated gene expression profiling and demonstrate that high global protein-mRNA concordance is a prognosis-related molecular characteristic of OABL. We portray the alternative splicing events landscape of OABL, and reveal the oncogenic role of ADAR. We identified strong nuclear staining of DNAJC9 as a promising pathology diagnostic biomarker for extranodal marginal zone lymphomas. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-022-02445-8.
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Kirkegaard MK. Ocular adnexal lymphoma: Subtype‐specific clinical and genetic features. Acta Ophthalmol 2022; 100 Suppl 270:3-37. [DOI: 10.1111/aos.15248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marina Knudsen Kirkegaard
- Department of Pathology, Eye Section, Copenhagen University Hospital Rigshospitalet Copenhagen Denmark
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Kalicińska E, Giza A, Zaucha JM, Giebel S, Zimowska‐Curyło D, Andrasiak I, Spychałowicz W, Wojnar J, Balcerzak A, Romejko‐Jarosińska J, Paszkiewicz‐Kozik E, Knopińska‐Posłuszny W, Rybka J, Jabłonowska P, Wróbel T. A survey across orbital lymphoma in Poland: Multicenter retrospective study of polish lymphoma research group (PLRG). Cancer Med 2022; 12:3036-3045. [PMID: 36161781 PMCID: PMC9939129 DOI: 10.1002/cam4.5223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 08/16/2022] [Accepted: 08/23/2022] [Indexed: 11/08/2022] Open
Abstract
OBJECTIVE To investigate the prevalence of histopathological subtypes, the clinical stage at presentation and treatment modalities in Polish patients with orbital lymphoma (OL) and to determine prognostic outcomes. METHODS The retrospective study of 107 patients with OL treated in a 14-year period in Polish hematological centers. The analysis included histopathological subtype, disease clinical advancement, treatment modalities, progression-free survival (PFS), and overall survival (OS). RESULTS The median patient age was 60 years (range 51-71). Mucosa-associated lymphoid tissue (MALT) lymphoma accounted for slightly more than half of all cases of orbital lymphoma (51%). The second most common subtype was diffuse large B-cell lymphoma (DLBCL) (29%). Primary orbital lymphoma was diagnosed in 48% of all patients. According to the Ann Arbor, localized stage IE of orbital lymphoma was diagnosed only in 39% of all patients. Systemic involvement was observed in more than half of all patients (52%). The median follow-up period was 30 months (range 0-160 months). Patients with non-MALT lymphoma had a significantly inferior PFS compared to patients with MALT lymphoma, (p = 0.047). Patients with primary orbital lymphoma had a superior PFS compared to patients with secondary orbital lymphoma [median PFS 104.5 months vs. 33.4 months], (p = 0.069). Younger patients with MALT lymphoma were characterized by superior PFS (median PFS not reached) compared to other studied subgroups of patients (older patients with MALT lymphoma, younger and older non-MALT lymphoma patients) with a median PFS of 30.5, 32.2, 32.6 months respectively (p = 0.039). Patients treated with chemotherapy alone had inferior PFS compared to patients treated with combined therapies (p = 0.034). The median PFS across patients who received chemotherapy alone was 23.7 months, whereas across other patients was 73.9 months. CONCLUSIONS Secondary lymphoma accounts for more than half of the orbital lymphoma in Polish population. The advanced clinical stage of the disease (non-IE according to Ann Arbor) concerns two-thirds of the overall population of patients with orbital lymphomas and one-third of MALT lymphoma patients. The high incidence of advanced stages of orbital lymphoma may indicate the need for combined treatment. Combined orbital lymphoma treatment is associated with superior PFS compared to chemotherapy alone in overall population of patients with orbital lymphoma.
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Affiliation(s)
- Elżbieta Kalicińska
- Department of Hematology, Blood Neoplasms and Bone Marrow TransplantationWrocław Medical UniversityWrocławPoland
| | - Agnieszka Giza
- Department of HematologyJagiellonian University Medical CollegeKrakówPoland
| | - Jan Maciej Zaucha
- Department of Hematology and TransplantologyMedical University of GdańskGdańskPoland
| | - Sebastian Giebel
- Department of Bone Marrow Transplantation and OncohematologyMaria Sklodowska‐Curie National Research Institute of OncologyGliwicePoland
| | | | | | - Wojciech Spychałowicz
- Department of Internal Medicine and OncologySilesian Medical UniversityKatowicePoland
| | - Jerzy Wojnar
- Department of Internal Medicine and OncologySilesian Medical UniversityKatowicePoland
| | - Andrzej Balcerzak
- Department of Hematology and Bone Marrow TransplantationPoznan University of Medical SciencePoznańPoland
| | | | | | | | - Justyna Rybka
- Department of Hematology, Blood Neoplasms and Bone Marrow TransplantationWrocław Medical UniversityWrocławPoland
| | - Paula Jabłonowska
- Department of Hematology, Blood Neoplasms and Bone Marrow TransplantationWrocław Medical UniversityWrocławPoland
| | - Tomasz Wróbel
- Department of Hematology, Blood Neoplasms and Bone Marrow TransplantationWrocław Medical UniversityWrocławPoland
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Xu L, Tang X, Jiang N, Zhang S, Cao Y, Sun X. Radiation Therapy Efficacy and Toxicity for Orbital and Ocular Adnexal Mucosa-Associated Lymphoid Tissue (OAMALT): A Single-Center, Retrospective Study of 32 Cases. Cancer Manag Res 2021; 13:8017-8024. [PMID: 34707410 PMCID: PMC8544123 DOI: 10.2147/cmar.s334396] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 10/15/2021] [Indexed: 12/18/2022] Open
Abstract
Purpose Lymphomas of the orbit and ocular adnexa are histologically heterogeneous and their incidence rate has been increasing lately. However, because of their rarity and diversity, few cases have been analyzed. This study evaluated patients with orbital and ocular adnexal mucosa-associated lymphoid tissue (OAMALT), who received radiotherapy, and categorized their clinical characteristics, treatment outcomes, and complications. Patients and Methods We collected data on clinical presentation, age, sex, imaging, tumor location, treatment methods, pathological diagnosis, cataract incidence, cataract incidence periods, overall survival (OS), and disease-free survival (DFS) from 32 patients with orbital involvement and pathologically confirmed marginal zone B-cell lymphoma of MALT who were treated between 2009 and 2018. Twenty-two patients received 20 Gy/10 Fr using intensity-modulated radiation therapy (IMRT) plus 14 Gy/7 Fr using a 6–14-MeV electron beam therapy using a lens-sparing approach. Ten patients received 32 Gy/16 Fr or 34 Gy/17 Fr using IMRT without the lens shield technique. Kaplan–Meier analysis was used to estimate DFS and OS. Results The median follow-up time was 83.4 ± 24.5 months. No patient had local recurrence, although three patients developed distant metastases. The 5-year and 10-year OS rates were both 100%. The 5-year and 10-year DFS rates were 96.7% and 74.2%, respectively. Overall, 11 (32.4%) of the 34 lenses developed cataracts. The estimated 5-year, 7-year, and 10-year cumulative cataract rates were 6.9%, 30.9%, and 60.8%, respectively. The median cumulative cataract incidence period was 107.0 months. Age was the only significant parameter associated with cataract formation. Conclusion A radiation dose of 32–34 Gy yields excellent local control, DFS, and OS for OAMALT. Some patients may have systemic relapse, and better identification of these patients is necessary. Reducing the prescription radiation dose or using better radiation techniques to spare the ipsilateral lens could reduce cataract formation.
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Affiliation(s)
- Liping Xu
- Department of Radiation Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, People's Republic of China
| | - Xinyu Tang
- Department of Radiation Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, People's Republic of China
| | - Nan Jiang
- Department of Radiation Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, People's Republic of China
| | - Sheng Zhang
- Department of Radiation Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, People's Republic of China
| | - Yuandong Cao
- Department of Radiation Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, People's Republic of China
| | - Xinchen Sun
- Department of Radiation Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, People's Republic of China
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