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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    Acne, Adenoid. See Lupus niiliaris. Acne Agminata. Aecordiug to Croeker, who proposes the name, the face is the part most often affected hy tliis dis- ease, though it may oecur on the limbs. The lesions tend to group about the ehin, l)elo\v the eyes, on the brows, temples, and u[)per li[)s. They vary in size from a })iu’s liead to a hemp seed ; are of a dull browuisli-red color, sometimes witli a central yellow point, with, though usually witiunit, comedones. Most of them contain ])us, while many give exit only to blood when pricked. Sometimes several run together and form an oblong nodular patch looking like lupus. Involution of the lesions may take place with or without suppuration, leaving a small brown pigmented sear. In most cases the lesions are persistent. The lesions begin like small shot under the skin, then eidarge with reddening of the skin, and at last project above the skin. Dr. Crocker believes that this disease is the same as acnitis of Barthelemy, though it lacks the tendency to break down and form a scab as does the latter. It is possible that it is a tuberculide, though no tubercle bacilli have been found. Acne Albida. See Milium. Acne Artificfalis. By this term is meant an inflamma- tion of the sebaceous glands and hair follicles caused by drugs either ap[)lied locallv or acting from within. It has th ree principal varieties, namely, far ante, bromic acne, and iodic acne, and should be regarded rather as a dermatitis medicamentosa than as an acne. Tar ])roduces acne-like lesions with black points wdien applied locally to some sus- ceptible skins. As a rule, papules are more abundant than ])ustules, but abscesses and furuncles may form. These lesions are not confined to the usual locations for acne, are particularly abundant on the extensor surface of the arms, and are recognizable by their central black points and by the fact that the patient is using tar. For its c,ure all that is necessary is to stop the use of the tar and to soothe the inflamed skin. None of these acnes is a true one. Bromic and iodic acne wdll be spoken of under drug eruptions. Derivatives of tar, chrysarobin, and pyrogallol 6
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