The site in which a neoplasm occurs is often the measure of its importance; this is decidedly so of warts when they occur in the nail fold. Previous to the introduction of radiant energy, they were frequently untreatable except by the severe surgical procedure of evulsion of the nail, and clearing out the entire base; and often this radical measure failed, for if they are not entirely eradicated they have the unpleasant attribute of recurrence.
THE ANATOMY OF THE WART
A verruca begins as a minute rounded grayish elevation composed of epithelial cells. As it increases in size, it sinks deeper into the subjacent epithelium, and the blood vessels of the subjacent papillae elongate upward to supply it with nourishment, forming digitate epithelial growths, each with a central core of connective tissue and a blood vessel loop. In some cases, the upward growth of the little tumor is most marked,
MONTGOMERY DW, CULVER GD. VERRUCA OF THE NAIL FOLD. Arch Derm Syphilol. 1924;10(4):425–428. doi:10.1001/archderm.1924.02360280019004
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