Intra-ocular melanomata

This research may be divided into two sections; one which concerns melanoblasts and their origin, the other which concerns melanomata (both benign and malignant).Writers on malignant tumours of the eye, when dealing with carcinomata, generally describe them as secondary growths, while malignant tumours of primary origin if pigmented have usually been described as sarcomatous, and if non -pigmented as leuco-sarcomatous growths.In his monograph on Melanomata (1925) Dawson sought to establish that melanomata are epithelial in origin. He suggested therefore that wherever they occur primary melanomata are carcinomata.The object of my research was to find the nature and origin of the pigmented cells of the uveal tract and to discover evidence for or against the above-mentioned theory