Lymphoma is characterized by cancerous growth within the white blood cells. When this occurs in the cells of the retina, it's known as primary intraocular lymphoma (PIOL), explains Columbia ...
A stereotactic brain biopsy demonstrated large B-cell lymphoma. An ophthalmic slit-lamp exam revealed bilateral intraocular lymphoma. Ocular lymphoma is present in 20%–25% of patients with PCNSL ...