Is irradiation a justifiable treatment of choroidal melanoma? Analysis of published results.
نویسندگان
چکیده
Analysis of the literature shows that dissemination of choroidal melanomas generally occurs after the 7 mm diameter stage, that doubling times of uveal melanomas vary from 30 to 365 days, and that death from metastases occurs 30-40 doubling times after dissemination. Tumour related death within three years after therapy is caused by pre-existing metastases. Survival rates for less than four years after therapy are therefore irrelevant in evaluating the efficacy of therapeutic regimens. Considerably higher postirradiation than postenucleation death rates after a mean 10-year follow-up period have been reported, and this difference can be explained by a reported mean clinical tumour regression rate of 31% two years after irradiation and histopathological studies which revealed that 42 out of 43 irradiated melanomas contained viable tumour, while only 50% showed necrosis. The doubtful value of preserving vision does not justify the high risk of avoidable death from metastases in irradiated patients.
منابع مشابه
Is radiation a justifiable treatment of choroidal melanoma?
Correspondence Is radiation a justifiable treatment of choroidal melanoma? SIR, The paper by W A Manschot and R van Strik (Br J Ophthalmol 1987; 71: 348-52) is of value as it stimulates thinking about the controversies in melanoma treatment, but it lacks important relevant data. The concept of tumour doubling time of the authors is an oversimplification, as they assume that there is only one gr...
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عنوان ژورنال:
- The British journal of ophthalmology
دوره 71 5 شماره
صفحات -
تاریخ انتشار 1987