TY - JOUR
T1 - Prognostic value of morphometric features and the callender classification in uveal melanomas
AU - Coleman, K.
AU - Baak, J. P.A.
AU - Van Diest, P. J.
AU - Mullaney, J.
N1 - Funding Information:
Montpellier, France, October 1994. Sponsored in part by grants from the Royal College of Surgeons in Ireland and the Royal Victoria Eye and Ear Hospital, Dublin, Ireland. Reprint requests to Kate Coleman, PhD, FRCOphth, The Research Foundation, The Royal Victoria Eye and Ear Hospital, Adelaide Rd, Dublin 2, Ireland.
PY - 1996
Y1 - 1996
N2 - Purpose: Cytomorphometric analysis of uveal melanoma has focused on nucleolar characteristics, although nuclear measurements are easier and more reproducible. In this study, we examine a restricted set of nuclear and nucleolar cytomorphometric variables in the search for the most quantifiable and reproducible prognostic parameter among these and discover a means of assessing the malignancy of tumors within the different Callender subgroups. Methods: Uveal melanomas from 94 patients with a minimum follow-up of 5 years underwent nuclear and nucleolar morphometric analysis using a digitized interactive video overlay system. Statistical analysis included univariate and multivariate survival analysis on morphometric variables and classic prognostic parameters (such as Callender cell type, size, etc.). Results: Univariate analysis of cytomorphometric parameters showed the standard deviation of nuclear area (NASD) to be the most significant variable (P < 0.0001; Mantel-Cox, 15.2). This was followed by the difference between nuclear and nucleolar areas (P < 0.002; Mantel-Cox, 9.5), the standard deviation of nucleolar area (SDNA) (P < 0.01; Mantel-Cox, 6.4), and the standard deviation of the shortest nuclear axis (P < 0.02; Mantel-Cox, 6.4). There was a trend for significance with the mean of the ten largest nucleoli (P < 0.07). Multivariate analysis of clinical and cytomorphometric variables showed improvement of prognostic prediction with a combination of the NASD, largest tumor dimension, and glaucoma (P < 0.0001; Mantel-Cox, 26.3). Callender cell type was strongly correlated with the NASD (P < 0.0002), the mean axis ratio of the nuclear area (P < 0.0007), and the mean of the ten largest nucleoli (P < 0.0007). Conclusion: Cytomorphometric analysis of uveal melanoma should include nuclear area and may identify tumors of differing malignancy within the same Callender class.
AB - Purpose: Cytomorphometric analysis of uveal melanoma has focused on nucleolar characteristics, although nuclear measurements are easier and more reproducible. In this study, we examine a restricted set of nuclear and nucleolar cytomorphometric variables in the search for the most quantifiable and reproducible prognostic parameter among these and discover a means of assessing the malignancy of tumors within the different Callender subgroups. Methods: Uveal melanomas from 94 patients with a minimum follow-up of 5 years underwent nuclear and nucleolar morphometric analysis using a digitized interactive video overlay system. Statistical analysis included univariate and multivariate survival analysis on morphometric variables and classic prognostic parameters (such as Callender cell type, size, etc.). Results: Univariate analysis of cytomorphometric parameters showed the standard deviation of nuclear area (NASD) to be the most significant variable (P < 0.0001; Mantel-Cox, 15.2). This was followed by the difference between nuclear and nucleolar areas (P < 0.002; Mantel-Cox, 9.5), the standard deviation of nucleolar area (SDNA) (P < 0.01; Mantel-Cox, 6.4), and the standard deviation of the shortest nuclear axis (P < 0.02; Mantel-Cox, 6.4). There was a trend for significance with the mean of the ten largest nucleoli (P < 0.07). Multivariate analysis of clinical and cytomorphometric variables showed improvement of prognostic prediction with a combination of the NASD, largest tumor dimension, and glaucoma (P < 0.0001; Mantel-Cox, 26.3). Callender cell type was strongly correlated with the NASD (P < 0.0002), the mean axis ratio of the nuclear area (P < 0.0007), and the mean of the ten largest nucleoli (P < 0.0007). Conclusion: Cytomorphometric analysis of uveal melanoma should include nuclear area and may identify tumors of differing malignancy within the same Callender class.
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U2 - 10.1016/S0161-6420(96)30452-1
DO - 10.1016/S0161-6420(96)30452-1
M3 - Article
C2 - 8874437
AN - SCOPUS:0029969057
VL - 103
SP - 1634
EP - 1641
JO - Ophthalmology
JF - Ophthalmology
SN - 0161-6420
IS - 10
ER -