The name of keloid was given by Alibert1 to neoplasms made up of connective tissue in the form of patches, strips or tuberositics, having identity with cicatricial tissue. One kind of keloids is developed spontaneously in the derma, with which the keloids are intrinsically connected, while others take their seat on the cicatricial tissue. After they have attained certain proportions they may remain without change indefinitely, though in rare cases they may undergo involution and disappear.
Alibert himself divided the keloids into two varieties, one true or spontaneous, developed without perceptible injury of the skin, and another false or spurious, produced on cicatricial tissue as the result of a trauma, to which Kaposi2 added a third one, the hypertrophic scar.
The difference between the two kinds of keloid was denied by Welander, Schütz3 and other authors, but it must be maintained for the reason
RAVOGLI A. A FALSE OR CICATRICIAL KELOID.. JAMA. 1904;XLIII(5):297–302. doi:10.1001/jama.1904.92500050001b
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