JAMA. 1928;90(7):499-502. doi:10.1001/jama.1928.02690340001001.
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It is scarcely necessary to elaborate on the scope and limitations of the disease long known as ringworm. Every physician can envisage how the term may have come into vogue, and how it was at first applied to a variety of more or less circumscribed lesions, annular and otherwise, which had a tendency toward peripheral spreading and perhaps central clearing. I have no doubt that some cases of psoriasis and syphilis were included in that category in the olden days. After that, with the discovery that in most of such cases fungus could be found, the term ringworm became confined to a more contracted group of lesions, not only circumscribed but even diffuse, which were caused by fungus, or at least in which fungus was found. As it stands today, then, any disease of the skin (with the exception of favus) which is caused by fungus may be admitted into


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