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  • Title: Vitreoretinal large B- cell lymphoma (VR- LBCL): Clinical and pathological features and treatment outcomes.
    Author: Fadlelseed H, Rhatigan M, Treacy M, Murphy C, O'Neill J, Kilmartin D, Kennedy S.
    Journal: Pathol Res Pract; 2024 Sep; 261():155500. PubMed ID: 39106590.
    Abstract:
    CONTEXT: Vitreoretinal large B- cell lymphoma (VR- LBCL) is a type of non- Hodgkin lymphoma confined to the eye and central nervous system (CNS). The clinical manifestations of intraocular lymphoma can precede, occur simultaneously with, or follow disease at CNS sites. It differs from other forms of extra-nodal lymphoma; in that it does not involve systemic sites other than CNS. OBJECTIVES: To analyse the clinical and pathological features, and treatment outcomes of a cohort of patients diagnosed with vitreoretinal lymphoma (VRL) in Royal Victoria Eye and Ear Hospital, Ireland between 2010 and 2024. METHOD: Retrospective review of medical records and pathology specimens of patients with ocular involvement in VR- LBCL over 14-year period and a review of the literature. RESULTS: Eight patients were included. All of them underwent pars plana vitrectomy and were confirmed to have VR- LBCL. The median age at diagnosis was 71 years. Three were men and five were women. Six had bilateral disease and two unilateral. Four of four patients had MYD88 L265P mutation present. Four patients showed a high interleukin-10 (IL-10) to interleukins-6 (IL-6) ratio in keeping with the diagnosis of VRL. Three patients had primary CNS lymphoma with subsequent eye involvement, despite systemic chemotherapy treatment. Of the five patients who presented with ocular lymphoma, two patients had CNS involvement after primary vitreoretinal lymphoma was diagnosed. Of those, one was initially treated with local intravitreal chemotherapy. Three patients had no CNS recurrence. At the time of this study, seven patients of eight are alive, four are disease free and two are on a first- line local chemotherapy treatment. One underwent treatment for CNS relapse. One patient died of the disease before commencing targeted therapy. CONCLUSION: This case series demonstrated excellent treatment outcomes for seven patients, alive at the time of the study. Both local radiotherapy and intravitreal chemotherapy achieved good ocular control with acceptable side effects and no significant difference in visual outcome. VRL is a difficult diagnosis and vitreous cytology should be prioritised in cases of vitritis unresponsive to treatment. Analysis of MYD88 L265P mutation and IL- 10: IL- 6 ratio >1 are useful adjuncts in the diagnosis of VR- LBCL, particularly in cases where limited vitreous material makes cytological evaluation challenging.
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