Primary lymphoma of the eye

Area of Science:

• Ophthalmology
• Oncology
• Pathology

Background:

• Primary lymphomas of the eye are typically localized and associated with a favorable prognosis.
• Understanding the clinical presentation, treatment outcomes, and complications is crucial for effective management.
• Adequate staging and pathological subtyping are vital for determining prognosis and guiding therapy.

Purpose of the Study:

• To review the clinical presentation, treatment outcomes, and complications of primary ocular lymphomas.
• To evaluate the clinical significance of adequate staging and the prognostic value of pathological subtypes.
• To assess the efficacy of radiotherapy alone versus combined treatments for different lymphoma grades.

Main Methods:

• Retrospective review of 24 patients with lymphoproliferative lesions of the eye.
• Analysis of clinical data, histological findings (using NCI Working Formulation), and staging.
• Evaluation of treatment outcomes (radiotherapy, chemo-radiotherapy, surgical excision) and follow-up data.

Main Results:

• The orbit was the most common site; 22 patients had malignant lymphomas, predominantly low-grade (e.g., diffuse small lymphocytic).
• Most patients (21/24) had stage I disease, unilateral involvement.
• Radiotherapy alone achieved up to 90% disease control in locally confined, low-grade orbital lymphomas; combined treatment was advised for intermediate/high-grade lesions.

Conclusions:

• Complete staging is essential for managing primary orbital lymphomas.
• Locally confined, low-grade orbital lymphomas have a high chance of control with radiotherapy alone.
• Combined treatment approaches are recommended for intermediate and high-grade orbital lymphomas.