title: Ultrastructure of human uveal melanomas cultivated in vitro.
abstract: Ultrastructural characteristics of four mixed-cell type human uveal melanomas cultivated in vitro were described. The authors stress the significance of melanosome microtubules in the process of melaninisation. They also stress the significance of smooth membraness for the formation of premelanosomes. The question of differentiation between melanocytes and lysosomes in ultrastructure is discussed.
mesh_terms: D002478:Cells, Cultured; D004721:Endoplasmic Reticulum; D005134:Eye Neoplasms / Q000473:pathology*; D006801:Humans; D066298:In Vitro Techniques; D008544:Melanocytes; D008545:Melanoma / Q000473:pathology*; D008854:Microscopy, Electron; D014602:Uvea / Q000473:pathology*