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Microvessel count predicts survival in uveal melanoma
A J Foss1, R A Alexander, L W Jefferies
1Department of Clinical Science, Institute of Ophthalmology, London, United Kingdom.
Cancer Research
|July 1, 1996
Summary
Microvessel density is a key predictor of survival in uveal melanoma patients. High microvessel density indicates a poorer prognosis, aiding in identifying patients who may benefit from adjuvant therapy.
Area of Science:
- Ophthalmology
- Oncology
- Pathology
Background:
- Microvessel density is a known prognostic indicator in various cancers.
- Uveal melanoma is the most common intraocular tumor and frequently metastasizes to the liver.
Purpose of the Study:
- To evaluate microvessel density as a prognostic factor for survival in uveal melanoma patients.
- To determine if microvessel density can identify high-risk patients for adjuvant therapy.
Main Methods:
- Immunohistochemical identification of Factor VIII-related antigen in 123 uveal melanoma tumors.
- Quantification of maximum blood vessel density in a 0.25 mm² area.
- Statistical analysis using univariate testing and Cox proportional hazard models.
Main Results:
- Microvessel density was the most significant prognostic factor on univariate analysis.
- Tumor size was the only other variable that entered the Cox proportional hazard model.
- No other previously accepted prognostic factors were significant in the model.
Conclusions:
- Microvessel density is a critical prognostic factor for survival in uveal melanoma.
- This marker helps identify patients with a higher risk of mortality.
- Findings support considering adjuvant therapy for high-risk uveal melanoma patients based on microvessel density.