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WART (Lat. verruca)

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Originally appearing in Volume V28, Page 336 of the 1911 Encyclopedia Britannica.
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WART (See also:Lat. verruca) , a papillary excrescence of the skin, or mucous membrane. The See also:ordinary See also:flat warts of the skin occur mostly upon the hands of See also:children and See also:young persons; a See also:long pendulous variety occurs about the See also:chin or. See also:neck of delicate children, and on the See also:scalp in adults. Warts are See also:apt to come out in See also:numbers at a See also:time; a See also:crop of them suddenly appears, to disappear after a time with equal suddenness. Hence the sup-posed efficacy of charms. A single wart will sometimes remain when the See also:general eruption has vanished. The liability of crops of warts runs in families. In after See also:life a wart on the hands or fingers is usually brought on by some irritation, often repeated, even if it be slight. Warts often occur on the wrists and knuckles of slaughter-See also:house men and of those much occupied with anatomical See also:dissection; they are often of tuberculous origin (butchers' warts). See also:Chimney-sweeps and workers in See also:coal-See also:tar, See also:petroleum, &c., are subject to warts, which often become cancerous. Warts occur singly in later life on the See also:nose or lips or other parts of the See also:face, sometimes on the See also:tongue; they are very apt to become See also:malignant. Towards old See also:age broad and flattened patches of warts of a greasy consistence and brownish See also:colour often occur on the back and shoulders. They also are apt to become malignant.

Indeed, warts occurring on the See also:

lip or tongue, or on any See also:part of the See also:body of a See also:person advanced in life, should be suspected of malignant associations and dealt with accordingly. Venereal warts occur as the result of gonorrhoeal irritation or syphilitic infection. A wart consists of a delicate framework of See also:blood-vessels sup-ported by fibrous See also:tissue, with a covering of epidermic scales. When the wart is young, the See also:surface is rounded; as it gets rubbed it is cleft into projecting points. The blood-vessels, whose outgrowth from the surface really makes the wart, may be in a cluster of parallel loops, as in the See also:common sessile wart, or the vessels may See also:branch from a single See also:stem, making the long, pendulous warts of the chin and neck. The same kinds of warts also occur on mucous surfaces. It is owing to its vascularity that a wart is liable to come back after being shaved off; the vessels are cut down to the level of the skin, but the blood is still forced into the stem, and the branches are thrown out beyond the surface as before. This fact has a bearing on the treatment of warts, if they are snipped off, the blood-vessels of the stem should be destroyed at the same time by a hot See also:wire or some other See also:caustic, or made to shrivel by an astringent. The same end is served by a gradually tightening ligature (such as a See also:thread of elastic) See also:round the See also:base of the wart. Glacial acetic or carbolic See also:acid may be applied on the end of a See also:glass See also:rod, or by a See also:camel-See also:hair See also:brush, care being taken not to See also:touch the adjoining skin. A See also:solution of perchloride of See also:iron is also effective in the same way. Nitrate of See also:silver is objectionable, owing to the See also:black stains See also:left by it.

A See also:

simple domestic remedy, often effectual, is the astringent and acrid juice of the common stonecrop (See also:Sedum See also:acre) rubbed into the wart, time after time, from the freshly gathered See also:herb. The result of these various applications is that the wart loses its firmness, shrivels up, and falls off. Malignant and tuberculous warts should be removed by the scalpel or See also:sharp See also:spoon, their bases, if thought advisable, being treated by pure carbolic acid. A See also:peculiar See also:form of wart, known as See also:vet-ragas, occurs endemically in the See also:Andes. It is believed to have been one of the causes of the excessive mortality from haemorrhages of the skin among the troops of See also:Pizarro. See also:Attention was called to it by Dr See also:Archibald See also:Smith in 1842; in 1874, during the making of the Trans-Andean railway, it caused considerable loss of life among See also:English navvies and See also:engineers. (E.

End of Article: WART (Lat. verruca)

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