UTILITY OF EN FACE OPTICAL COHERENCE TOMOGRAPHY IN INTRAOCULAR LYMPHOMA

To report the en face optical coherence tomography (OCT) features of intraocular lymphoma.

Retrospective, observational case report.

A 59-year-old man, a known case of primary testicular carcinoma, complained of right eye blurred vision since 1 week. He had previously undergone systemic intravenous chemotherapy (R-CHOP regimen), orchiectomy, and external beam radiotherapy for the primary malignancy. His right eye vision was 20/30, 6/6 reduced Snellen. The right eye anterior segment examination was normal. Fundus examination showed vitreous cells 1+ and a large, bumpy, subretinal dull-yellow lesion sparing the fovea with multiple discrete yellow retinal lesions at the posterior pole. Magnetic resonance imaging of the brain was normal. Multimodal imaging was used to document the clinical features. On the en face OCT, multiple hyperreflective lesions were identified on the superficial, deep, and outer retinal slabs of the scan corresponding to the vertical hyperreflective lesions extending from the retinal nerve fiber layer to the retinal pigment epithelium. The subretinal pigment epithelium lesion can be well delineated in the choriocapillaris segment. He was treated with multiple injections of intravitreal methotrexate 400 μg/0.1 mL along with systemic chemotherapy in conjunction with the oncologist. At the 6-month follow-up, fundus lesions had regressed. In addition, resolution of the lesions was noted on the OCT and en face OCT scans.

En face OCT imaging can be considered for monitoring the therapeutic efficacy after intravitreal chemotherapy in intraocular lymphoma.