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Article
April 24, 1915

ROENTGEN-RAY KERATOSES ON HAND OF ROENTGENOLOGIST CURED BY RADIUM

JAMA. 1915;LXIV(17):1394-1395. doi:10.1001/jama.1915.02570430026010
Abstract

My own hands had long been disfigured by these growths which resulted from my Roentgen-ray work and which occasioned some anxiety from the fact that many of my acquaintances in this specialty had developed fatal cancer from a similar origin. The lesions were of two types. A very few were raised, almost pedunculated, healthy looking fleshy tumors with a black pigmented apex. About thirty others were exceedingly hard black lumps projecting slightly above the surface of the skin. The smaller ones of this type had a tendency to undergo spontaneous exfoliation about once a year, leaving a healed surface somewhat depressed but surrounded by an indurated base. In a very few days a deposit of pigment granules would take place looking, under a magnifying glass, like particles of anthracite coal and in a week or two the black lump would have been renewed. The smaller lumps of this type could

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