Orbital lymphoma can result in rapid loss of vision if not diagnosed and treated in a timely manner. This patient presented with rapid visual loss and on examination had a rubeosis iridis with a hyphema as well as neovascular glaucoma with vitreous hemorrhage. His medical history included systemic diffuse large B-cell lymphoma and a workup ultimately revealed an orbital mass in the body of the optic nerve. Optic nerve biopsy demonstrated diffuse large B-cell lymphoma. To the authors' knowledge, neovascular glaucoma as the presentation of an extraocular diffuse large B-cell lymphoma has not been reported previously. Lymphomas of the orbit and its adnexa constitute roughly 1% of all non-Hodgkin lymphoma.1 Most cases are marginal-zone B-cell lymphomas, with the second most common being diffuse large B-cell lymphomas.2 Orbital lymphomas can rapidly progress to complete visual loss when not diagnosed early. The authors report a patient who presented with rapid visual loss due to hyphema, rubeosis iridis, neovascular glaucoma and vitreous hemorrhage secondary to orbital diffuse large B-cell lymphoma. Research methods were adherent to the ethical principles outlined in the Declaration of Helsinki as amended in 2013. The collection and evaluation of protected patient health information was Health Insurance Portability and Accountability Act compliant.The authors report a case of lymphoma metastatic to the optic nerve masquerading as neovascular glaucoma with vitreous hemorrhage.
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