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Related Experiment Video

Updated: Oct 17, 2025

Author Spotlight: Advancing VRL Diagnosis Using Cell-Free DNA Extraction from Vitreous Humor

Author Spotlight: Advancing VRL Diagnosis Using Cell-Free DNA Extraction from Vitreous Humor

Published on: January 12, 2024

Vitreoretinal Lymphoma: Optimizing Diagnostic Yield and Accuracy.

Matthew C Santos¹, Angela Jiang², Albert S Li³

¹Washington University School of Medicine, John F. Hardesty Department of Ophthalmology and Visual Sciences (M.C.S., A.J., A.S.L., P.K.R., B.W., G.J.H.), St. Louis, Missouri.

American Journal of Ophthalmology

|October 9, 2021

Summary

This summary is machine-generated.

Adding immunohistochemistry (IHC) and cytokine analysis to cytologic smears significantly improves vitreoretinal lymphoma (VRL) detection. This combination offers high diagnostic utility, making IgH gene rearrangement and flow cytometry less essential for VRL diagnosis.

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Area of Science:

Ophthalmology
Oncology
Pathology

Background:

Vitreoretinal lymphoma (VRL) diagnosis can be challenging.
Adjunctive tests may improve diagnostic accuracy over cytologic smears alone.

Purpose of the Study:

To evaluate the diagnostic utility of adjunctive tests (IHC, cytokine analysis, flow cytometry, IgH gene rearrangement) for VRL detection.
To compare these tests and their combinations against cytologic smears alone.

Main Methods:

Retrospective review of 237 vitreous biopsies from patients with suspected VRL.
Analysis of diagnostic parameters (sensitivity, specificity, yield) for individual tests and combinations.
Comparison of diagnostic performance before and after implementing adjunctive tests.

Main Results:

The combination of smears, IHC, and cytokine analysis achieved 92% sensitivity and 98% specificity.
Diagnostic yield was 100% for this combination.
IgH gene rearrangement showed low sensitivity (40%), and flow cytometry had the lowest yield (50%).

Conclusions:

A diagnostic protocol combining cytologic smears, IHC, and cytokine analysis is effective for VRL.
IgH gene rearrangement and flow cytometry may be omitted without compromising diagnostic accuracy.