Subcutaneous diffuse large B-cell lymphoma with intraocular involvement.

Here, we present an observational case report of choroidal involvement of subcutaneous diffuse large B-cell lymphoma (DLBCL). An 85-year-old female presented with a growing mass on her left abdominal wall that had been gradually growing over 2 months, which was diagnosed as subcutaneous DLBCL. A total of 1.5 months after her initial diagnosis, she presented with decreased peripheral vision of her right eye with intermittent pain for 1 month, and nausea and dizziness for 3 days. A large choroidal mass with vitreous seeding was found and vitreous aspiration with flow cytometry established the diagnosis of intraocular DLBCL. No tumorous lesions were detected anywhere else. Therefore, the patient was diagnosed as stage IV subcutaneous DLBCL with solely intraocular involvement, and was subsequently treated with systemic and intravitreal chemotherapy. A total of 9 months later, she achieved complete remission. It was concluded that subcutaneous extranodal DLBCL is a very rare form of non-Hodgkin lymphoma that can involve only the choroid.