title: Cytomorphology of a mixed pigmented/nonpigmented pleomorphic adenoma of the ciliary body: a diagnostic pitfall in the evaluation of intraocular tumors.
abstract: Intraoperative cytology is an alternative and sometimes preferred method to frozen section in the rapid evaluation of surgical biopsies. This report describes the cytological, histological, and immunohistochemical features of a case of mixed pigmented/nonpigmented pleomorphic adenoma of the ciliary body with clinical and morphological features reminiscent of malignant melanoma. The characteristic cyto-histomorphology of this unusual tumor and its distinguishing features from malignant melanoma are discussed.
authors.affiliation: Department of Pathology, Georgetown University Medical Center, Washington, DC, USA.
authors.forename: N V
authors.initials: NV
authors.lastname: Laver
authors.forename: R S
authors.initials: RS
authors.lastname: Rubinfeld
authors.forename: M
authors.initials: M
authors.lastname: Baum
authors.forename: P A
authors.initials: PA
authors.lastname: de Brito
mesh_terms: D008949:Adenoma, Pleomorphic / Q000473:pathology*; D014408:Biomarkers, Tumor / Q000032:analysis; D002924:Ciliary Body / Q000473:pathology; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008875:Middle Aged; D014604:Uveal Neoplasms / Q000473:pathology*
chemical_list: D014408:Biomarkers, Tumor