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  • Title: [Prognostic relevance of histopathologic parameters in malignant melanoma of the choroid using the pTNM classification].
    Author: Göllnitz R, Lommatzsch PK.
    Journal: Klin Monbl Augenheilkd; 1988 Apr; 192(4):296-301. PubMed ID: 3404940.
    Abstract:
    On the basis of data collected over a period of 22 years from 376 patients enucleated at the Eye Clinic of Karl Marx University, Leipzig because of malignant choroidal melanoma, the prognostic significance and reliability of various histopathological characteristics was investigated. The most significant characteristic proved to be the cell type, followed by the degree of pigmentation, the nature and degree of infiltration of the sclera, and tumor size. The relationship of these parameters to the survival rate was shown to be statistically significant by the mortality tabulation method, contingency tabulation method and rank correlation (Spearman). Furthermore, various correlations between the observed variables were ascertained. This statistical analysis shows that the mitosis has no significant bearing on the prognosis. The five-year metastasis rate was 32.8% and the ten-year rate 40.3%. The metastasis peak of 10.4% occurs in the second postoperative year. After the fifth year the annual mortality rate falls to less than 2% and after the seventh year to less than 1%. The data also indicate that even small, Stage I melanomas metastasize if they are not composed purely of spindle cells. With such tumors the peak metastasis rate shifts to the fourth postoperative year.
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