title: Melanocytoma of the ciliary body.
abstract: A 57-year-old Caucasian woman was found, on a routine ophthalmoscopic examination, to have a pigmented ciliary body mass suggestive of a malignant melanoma. The eye was enucleated primarily because a radioactive phosphorus test yielded a 79% greater uptake over the lesion than over a control area-a result regarded as positive at that time. Histopathologically, the lesion proved to be a benign melanocytoma of the ciliary body. Electron microscopy clearly revealed a large complement of inflammatory cells (macrophages) within the tumor. This case reemphasizes the advisability of carefully documenting tumor growth before enucleating eyes harboring pigmented lesions.
mesh_terms: D002924:Ciliary Body / Q000000981:diagnostic imaging*; D003951:Diagnostic Errors; D005134:Eye Neoplasms / Q000000981:diagnostic imaging*; D005189:False Positive Reactions; D005260:Female; D006801:Humans; D008545:Melanoma / Q000000981:diagnostic imaging; D008875:Middle Aged; D009508:Nevus, Pigmented / Q000000981:diagnostic imaging*; D010761:Phosphorus Radioisotopes; D011877:Radionuclide Imaging; D014603:Uveal Diseases / Q000000981:diagnostic imaging*
chemical_list: D010761:Phosphorus Radioisotopes