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Intraocular lymphoma. Clinical and histopathologic diagnosis
S M Whitcup1, M D de Smet, B I Rubin
1Laboratory of Immunology, National Eye Institute, National Institutes of Health, Bethesda, MD 20892.
Ophthalmology
|September 1, 1993
Summary
Diagnosing intraocular lymphoma, a serious eye cancer, often requires multiple tests and expert review. Prompt specimen handling and cytopathology are key for accurate and timely diagnosis of this central nervous system lymphoma.
Area of Science:
- Ophthalmology
- Oncology
- Neurology
Background:
- Intraocular lymphoma presents significant morbidity and mortality risks.
- Early diagnosis and treatment are crucial for improving patient prognosis.
Purpose of the Study:
- To review the diagnostic features of intraocular lymphoma.
- To highlight challenges and critical factors in diagnosing intraocular lymphoma.
Main Methods:
- Retrospective review of 12 intraocular lymphoma cases diagnosed at the National Eye Institute (1984-1992).
- Analysis of diagnostic specimens including vitrectomy, cerebrospinal fluid (CSF), and enucleation samples.
- Evaluation of diagnostic timelines and factors influencing diagnosis.
Main Results:
- Large B-cell lymphoma was pathologically confirmed in most cases via vitrectomy specimens.
- Diagnosis was often delayed (mean 21.4 months), with initial tests sometimes negative.
- Malignant cells were frequently found in CSF, but repeat examinations were often necessary.
- Experienced cytopathology was critical for identifying lymphoma cells, which can be challenging to detect.
- Corticosteroids appeared to reduce lymphoma cell viability in samples.
Conclusions:
- Accurate diagnosis of intraocular lymphoma hinges on prompt specimen handling and expert cytopathological review.
- Malignant cells are often present in CSF at the time of ocular lymphoma diagnosis.
- Multiple diagnostic procedures, such as repeat vitrectomies and lumbar punctures, may be required for definitive diagnosis.