Long-Term Remission Achieved with Radiotherapy for Rare Eye Cancer
Table of Contents
Published October 26, 2025
Understanding Lacrimal Sac Lymphoma
Diffuse large B-cell lymphoma (DLBCL) primarily affecting the lacrimal sac – the drainage system for tears – is an exceedingly rare cancer. It accounts for a very small percentage of all DLBCL cases adn presents unique challenges for treatment due to its location and potential impact on vision and facial structures.
Case Study: 21 Years of Follow-Up
A recent case report details a patient successfully treated for primary DLBCL of the lacrimal sac with radiotherapy alone, maintaining remission for an exceptional 21 years. The patient initially presented with a noticeable mass near the inner corner of the eye. Diagnostic imaging confirmed the presence of lymphoma confined to the lacrimal sac.
Rather than employing chemotherapy, which is often a standard component of DLBCL treatment, clinicians opted for a focused course of local radiotherapy. This approach aimed to precisely target the cancerous tissue while minimizing systemic side effects.
Treatment and Outcome
The patient received a carefully planned radiotherapy regimen, delivering a specific dose to the lacrimal sac. Throughout the 21-year follow-up period,the patient exhibited no evidence of cancer recurrence. Regular monitoring, including physical examinations and imaging studies, consistently confirmed sustained remission.
This case highlights the potential for highly localized radiotherapy to be a curative treatment option for select patients with primary DLBCL of the lacrimal sac. The long-term success underscores the importance of individualized treatment planning based on the extent of disease and patient-specific factors.
Implications for Patient Care
While chemotherapy remains a cornerstone of DLBCL treatment, this case provides compelling evidence that radiotherapy alone can be effective in carefully selected patients with localized disease in the lacrimal sac. This approach may be particularly beneficial for individuals who are not ideal candidates for chemotherapy due to age or other health conditions.
Further research is needed to identify the specific characteristics of patients most likely to benefit from radiotherapy-only treatment. However,this case offers a hopeful outlook for individuals diagnosed with this rare and challenging cancer.
