摘要
INTRODUCTION Primary central nervous system lymphoma （PCNSL） is defined as lymphoma confined to the brain, eye, spinal cord, or leptomeninges. It constitutes approximately 3% of all brain tumors, and 2-3% of all cases of non-Hodgkin lymphoma. Ocular involvement can be detected during clinical staging in about 20% of patients with PCNSL, with primary vitreous retinal lymphoma being the most common subtype. Uveal involvement of PCNSL is uncommon, and PCNSL with ciliary body involvement （CBL）, to the best of our knowledge, has not been reported.
INTRODUCTION Primary central nervous system lymphoma （PCNSL） is defined as lymphoma confined to the brain, eye, spinal cord, or leptomeninges. It constitutes approximately 3% of all brain tumors, and 2-3% of all cases of non-Hodgkin lymphoma. Ocular involvement can be detected during clinical staging in about 20% of patients with PCNSL, with primary vitreous retinal lymphoma being the most common subtype. Uveal involvement of PCNSL is uncommon, and PCNSL with ciliary body involvement （CBL）, to the best of our knowledge, has not been reported.
