title: The nature of the orange pigment over a choroidal melanoma. Histochemical and electron microscopical observations.
mesh_terms: D002830:Choroid Neoplasms / Q000473:pathology*; D004847:Epithelial Cells; D005451:Fluorescein Angiography; D005654:Fundus Oculi; D006651:Histocytochemistry; D006801:Humans; D008264:Macrophages; D008297:Male; D008545:Melanoma / Q000473:pathology*; D008854:Microscopy, Electron; D008856:Microscopy, Fluorescence; D008875:Middle Aged; D010860:Pigments, Biological; D012174:Retinitis Pigmentosa / Q000473:pathology*; D013194:Staining and Labeling
chemical_list: D010860:Pigments, Biological