MALIGNANT NONTERATOID MEDULLOEPITHELIOMA OF THE CILIARY BODY IN AN ADULT

Background: The authors describe a 62-year-old man with a malignant no nteratoid malignant medulloepithelioma of the ciliary body with extens ion into the anterior choroid and posterior chamber. He developed grad ual loss of vision in his right eye, and a clinical diagnosis of malig nant melanoma of the ciliary body and choroid was made. Results: Histo pathologic examination of the enucleated eye showed a malignant nonter atoid medulloepithelioma of the ciliary body with extension into the a nterior choroid and posterior chamber. Conclusion: This report provide s clinicopathologic evidence that intraocular medulloepithelioma can o ccur rarely in an adult. The lesion clinically may mimic a malignant m elanoma, The authors also summarize five previously reported cases of this unusual lesion.