Intraocular fine-needle aspiration biopsy of coronal adenomas.

The cytologic findings from intraocular biopsy of coronal adenomas of three previously surgically enucleated eyes were studied. Cohesive clusters of nonpigmented epithelial cells were observed. Clusters of epithelial cells were surrounded by characteristic intercellular matrix material. Coronal adenomas have been clinically mistaken for intraocular melanomas. It is important for pathologists to be familiar with the aspiration cytology of the coronal adenoma to avoid unnecessary enucleation or iridocyclectomy.