Practical podiatry : . davariety, and additional nomenclature tends to confuse thestudent. Among these are the verruca plantaris, verrucacalcis, verruca metatarsalis, verruca lobosa, verruca fibrosa,verruca digita, etc. Synonyms. Papilloma, Wart. Fr. verrue. Derivation. Verruca is derived from the Latin, mean-ing wart. Etiology. There is no general agreement among path-ologists as to the cause of verruca. The older theory heldthat verruca was due to want of normal power within theintegument. Some claim it to be due to a microorganism,while others assert that it is caused by irritation or injur
Practical podiatry : . davariety, and additional nomenclature tends to confuse thestudent. Among these are the verruca plantaris, verrucacalcis, verruca metatarsalis, verruca lobosa, verruca fibrosa,verruca digita, etc. Synonyms. Papilloma, Wart. Fr. verrue. Derivation. Verruca is derived from the Latin, mean-ing wart. Etiology. There is no general agreement among path-ologists as to the cause of verruca. The older theory heldthat verruca was due to want of normal power within theintegument. Some claim it to be due to a microorganism,while others assert that it is caused by irritation or latter reason seems to be the most reasonable one, since . 185 186 PODIATRY the patients who have been questioned thoroughly, all seemto give a history of trauma or of some chronic irritation. Some verrucae seem to occur spontaneously and it be-comes difficult to draw a line between those that grow in thismanner and those that develop from an injury or from achronic irritation. Predisposition seems to play an im-. VEEEUCA HUMIDA OE CALCIS portant part in the etiology of verruca, but irritation issurely a factor in most if not in all cases. This predisposi-tion may lie in the peculiar structure of the tissues, whichis- of course, difficult to determine. The fall and early winter, seem to be the time at whichmost cases appear, and their history seems to indicate thateither there has been an injury or an irritation, such forinstance as is produced in walking barefooted on thebeaches, which occurred during the previous who walk distances over rough roads in the moun- VERRUCA 187 tains, or who wear thin-soled shoes and sneakers or hob-nailshoes, or who have stepped on a sharp stone, are mostlikely to develop verrucse. Verruca is found on the hands of young persons, andon the feet of adults, but only occasionally is this growthseen on the feet of children. This is undoubtedly due to thefact that young people use the hands in playing to a greatextent, and in that wa
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