Tongue with a leucomatous condition of the dorsum
Wellcome Collection

Tongue with a leucomatous condition of the dorsum

Mark, Leonard Portal

CC0 — Public Domain
Wellcome Collection

Watercolour drawing of the tongue of a man who had a leucomatous condition of the dorsum, with an epitheliomatous patch upon the left side. From a man, aged 48, who had never had syphilis, and who never smoked. The leukoplakia had lasted twenty years, but the epithelioma had only been noticed for a month.

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