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Curative radiotherapy for primary orbital lymphoma.
Sudershan Bhatia1, Arnold C Paulino, John M Buatti
1Department of Radiation Oncology, University of Iowa College of Medicine, Iowa City, IA, USA.
International Journal of Radiation Oncology, Biology, Physics
|October 16, 2002
Summary
Radiotherapy alone effectively treats primary orbital lymphoma, achieving high survival and local control rates. While complications like cataracts can occur, especially in males, a lens-sparing technique is recommended to minimize severe toxicity.
Area of Science:
- Ophthalmology
- Radiation Oncology
- Hematology
Background:
- Primary orbital lymphoma is a rare malignancy.
- Accurate diagnosis and staging are crucial for effective treatment planning.
Purpose of the Study:
- To review institutional experience with primary orbital lymphoma.
- Determine prognostic factors for survival, local control, and distant metastases.
- Analyze risk factors for complications in radiotherapy.
Main Methods:
- Retrospective review of 47 patients with Stage IAE orbital lymphoma treated with curative radiotherapy.
- Histologic classification according to WHO and Working Formulation grading.
- Analysis of local control, survival, recurrence patterns, and complications using LENT scoring.
Main Results:
- 100% local control rate achieved with radiotherapy alone.
- 5-year overall and relapse-free survival rates were 73.6% and 65.5%, respectively.
- Male gender was a risk factor for cataract formation; lens-sparing technique reduced Grade 3 toxicity.
Conclusions:
- Radiotherapy is highly effective for primary orbital lymphoma.
- Most complications were minimal, but lens-sparing technique is recommended to reduce severe toxicity.
- Further research into optimizing radiotherapy techniques and managing late effects is warranted.