PURPOSE: To evaluate choroidal melanomas in enucleated eyes for the presence of type I estrogen receptors. METHODS: Fourteen consecutive eyes with large choroidal melanomas (defined as >16-mm basal diameter and >8 mm thickness) from 14 patients (eight women and six men with a mean age of 57 years; range, 25--74 years) enucleated in accordance with the Collaborative Ocular Melanoma Study (COMS) protocol were investigated. Immunohistochemical techniques were employed to label the choroidal melanomas for the presence of type I estrogen receptors. Each specimen was then evaluated in a masked fashion by an experienced ophthalmic pathologist for positive nuclear staining. RESULTS: No tumors showed immunohistochemical evidence of a type I estrogen receptor. CONCLUSION: Type I estrogen receptors are not present in choroidal melanoma. Estrogens are not likely to influence choroidal melanoma growth through traditional receptors.
PURPOSE: To evaluate choroidal melanomas in enucleated eyes for the presence of type I estrogen receptors. METHODS: Fourteen consecutive eyes with large choroidal melanomas (defined as >16-mm basal diameter and >8 mm thickness) from 14 patients (eight women and six men with a mean age of 57 years; range, 25--74 years) enucleated in accordance with the Collaborative Ocular Melanoma Study (COMS) protocol were investigated. Immunohistochemical techniques were employed to label the choroidal melanomas for the presence of type I estrogen receptors. Each specimen was then evaluated in a masked fashion by an experienced ophthalmic pathologist for positive nuclear staining. RESULTS: No tumors showed immunohistochemical evidence of a type I estrogen receptor. CONCLUSION: Type I estrogen receptors are not present in choroidal melanoma. Estrogens are not likely to influence choroidal melanoma growth through traditional receptors.
Authors: Grzegorz Swiatoniowski; Grzegorz Mazur; Agnieszka Hałoń; Grzegorz Rozumek; Maria Dabrowska; Radosław Zawisza; Edmun Prudlak Journal: Pathol Oncol Res Date: 2004-12-27 Impact factor: 3.201