The presentation of this subject as a lantern exhibition permits the demonstration of a large number of slides showing the usual and unusual features of the two main types of cutaneous epithelioma a and some of the conditions which precede their growth. As it is obviously or graphically, in a paper of this scope, only a few selected ones will be introduced to em-hasize certain features, and in the tex reference will be made to those of interest which have been published elsewhere.
There is perhaps no field in tumor pathology which offers such facilities for the study of diversity in histologic structure as the growths of the skin, nor one which furnishes the opportunity for investigating such a variety of mediate causes. In the vast majority of cases a tumor when first seen is beyond its first inception, malignancy is already established, and its genesis and initial changes left to speculation.
FORDYCE JA. THE PATHOLOGY OF MALIGNANT EPITHELIAL GROWTHS OF THE SKIN. JAMA. 1910;55(19):1624–1631. doi:10.1001/jama.1910.04330190020006
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