The ready reference handbook of diseases of the skin / By George Thomas Jackson, ... With 99 illustrations and 4 plates.

Date:
1906
Catalogue details

Licence: In copyright

Credit: The ready reference handbook of diseases of the skin / By George Thomas Jackson, ... With 99 illustrations and 4 plates. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    indicative of what has from old times been called the strumous condition. If the inflammatory process has been unusually severe, we may find a consideral)le amount of scarring. Usually acne vulgaris does not leave permanent scars. The profuseness of the eruption varies greatly. In some cases there will be but a few lesions, while in other cases they will be present in vast amount. This form of acne generally occurs in young people. The duration of the individual lesion is short, as it soon either dries up or discharges its contents. If the papules are squeezed, little plugs of sebaceous matter will be expressed. If the papulo-pustules are treated in the same way, there will first be pressed out a small sebaceous plug and then a drop or two of pus. Acne Indurata is a pustular acne in which the pustules are of large size and seated upon deeply infiltrated bases. They are most commonly sparsely dispersed, and take the form of purplish “ lumps ” of pea to bean size which are hard to the touch. Sometimes they are more readily appreciated by touch than by sight, being located deeply in the skin. Sometimes they take the form of cutaneous abscesses, and if by chance several are located close to one another they may run together and form a raised, dark- red, doughy mass. When incised, these lesions sometimes give exit to a large amount of thick pus. They usually leave scars, which sometimes are very disfiguring unless they are opened very early in their course. It may be the only form of acne present, or it may be combined with acne vulgaris. This form of acne usually occiu’s at a more advanced age than does acne vulgaris, though it is not in- frequently met with in early life, and may persist through- out life. While occurring on the face, the neck and back are the regions in which it is prone to develoj) in the most marked manner. (Fig. 6.) Etiology. Acne is one of the most common of skin diseases, and its great predisposing cause is youth. The disease first shows itself about the time of ])nberty and manifests a tendency to disappear when the body is fully developed—that is, from the twenty-third to the thirtieth
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