Quotation from: Manual of SurgeryWritten by: Alexander Miles and Alexis Thomson |
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#Horns.#--The _sebaceous_ horn results from the accumulation of the dried contents of a wen on the surface of the skin: the sebaceous material after drying up becomes cornified, and as fresh material is added to the base the horn increases in length (Fig. 100). The _wart_ horn grows from a warty papilloma of the skin. _Cicatrix_ horns are formed by the heaping up of epidermis in the scars that result from burns. _Nail_ horns are overgrown nails (keratomata of the nail bed), and are met with chiefly in the great toe of elderly bedridden patients. If an ulcer forms at the base of a horn, it may prove the starting-point of epithelioma, and for this reason, as well as for others, horns should be removed.
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