S Seregard1, B Spångberg, C Juul, M Oskarsson. 1. Ophthalmic Pathology and Oncology Service, St Eriks Eye Hospital, Karolinska Institute, Stockholm, Sweden.
Abstract
OBJECTIVE: This study aimed to compare the prognostic value and the predictive accuracy of the PC-10 cell cycling marker with the largest tumor diameter, the mean of the largest nucleoli, and vascular patterns in posterior uveal melanoma. DESIGN: The study design was a case-control study. PARTICIPANTS: Eyes enucleated for posterior uveal melanoma from patients who either died of metastatic melanoma or survived without signs of metastatic disease 10 years or more after surgery were studied. INTERVENTION: Three observers assessed the above prognostic indicators and standard histopathologic characteristics from microslides without access to survival data. MAIN OUTCOME MEASURES: Univariate and multivariate Cox models for survival were constructed, and a multiparameter prognostic index was calculated for each patient, based on covariates obtained from the final Cox model. The prognostic accuracy was determined by receiver operating characteristic curve analysis. RESULTS: The log PC-10 count, vascular networks, mean of the largest nucleoli, largest tumor diameter, age of patient, and prognostic index were independently associated with outcome. However, each of these indicators had no more than a poor-to-moderate predictive accuracy, and only the prognostic index was significantly better than the largest tumor diameter. CONCLUSIONS: The PC-10 count retains a prognostic value in uveal melanoma when adjusting for the effect of the mean of the largest nucleoli and diverse vascular patterns. A prognostic index combining two or more indicators may improve the predictive precision.
OBJECTIVE: This study aimed to compare the prognostic value and the predictive accuracy of the PC-10 cell cycling marker with the largest tumor diameter, the mean of the largest nucleoli, and vascular patterns in posterior uveal melanoma. DESIGN: The study design was a case-control study. PARTICIPANTS: Eyes enucleated for posterior uveal melanoma from patients who either died of metastatic melanoma or survived without signs of metastatic disease 10 years or more after surgery were studied. INTERVENTION: Three observers assessed the above prognostic indicators and standard histopathologic characteristics from microslides without access to survival data. MAIN OUTCOME MEASURES: Univariate and multivariate Cox models for survival were constructed, and a multiparameter prognostic index was calculated for each patient, based on covariates obtained from the final Cox model. The prognostic accuracy was determined by receiver operating characteristic curve analysis. RESULTS: The log PC-10 count, vascular networks, mean of the largest nucleoli, largest tumor diameter, age of patient, and prognostic index were independently associated with outcome. However, each of these indicators had no more than a poor-to-moderate predictive accuracy, and only the prognostic index was significantly better than the largest tumor diameter. CONCLUSIONS: The PC-10 count retains a prognostic value in uveal melanoma when adjusting for the effect of the mean of the largest nucleoli and diverse vascular patterns. A prognostic index combining two or more indicators may improve the predictive precision.
Authors: Amy Y Lin; Zhuming Ai; Sang-Chul Lee; Peter Bajcsy; Jacob Pe'er; Lu Leach; Andrew J Maniotis; Robert Folberg Journal: Appl Immunohistochem Mol Morphol Date: 2007-03
Authors: C Chiquet; J D Grange; L Ayzac; P Chauvel; L M Patricot; M Devouassoux-Shisheboran Journal: Br J Ophthalmol Date: 2000-01 Impact factor: 4.638
Authors: Robert Folberg; Zarema Arbieva; Jonas Moses; Amin Hayee; Tone Sandal; Shrihari Kadkol; Amy Y Lin; Klara Valyi-Nagy; Suman Setty; Lu Leach; Patricia Chévez-Barrios; Peter Larsen; Dibyen Majumdar; Jacob Pe'er; Andrew J Maniotis Journal: Am J Pathol Date: 2006-10 Impact factor: 4.307