A manual of the diseases of the skin / by Balmanno Squire.

  • Squire, Balmanno (Alexander John Balmanno), -1908.
Date:
1868
Catalogue details

Licence: Public Domain Mark

Credit: A manual of the diseases of the skin / by Balmanno Squire. Source: Wellcome Collection.

Provider: This material has been provided by University of Bristol Library. The original may be consulted at University of Bristol Library.

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    proacli the condition already described as proper to Psoriasis. There is usually more or less itching of the affected skin, but, unless the surface involved be ex- tensive and considerably inflamed, there is no consti- tutional disturbance. The varieties of Pityriasis are distinguished by the terms alba, fusca, rubra, and pilaris. P. alba attacks especially the hairy scalp, and is cha- racterized usually by an abundant formation of scurf. Although there is generally no redness, there is always considerable itching of the affected skin. The scales of which the scurf consists are thin, dry, opaque, and white; they are readily detached in great numbers by scratching or rubbing the part. Often, the hair becomes greatly thinned in long-standing cases of this complaint; but, when the disease ceases, the hair grows again as thickly as before. P. fusca affects especially the face and neck, and oc- curs in the form of irregularly-rounded patches, vary- ing in size from that of a threepenny-piece to that of a half-crown. The affected skin is a little thickened and slightly creased; is of a faint tawny-red colour, and is sprinkled over with extremely fine, white, loosely-ad- herent, floury scales, which are much less opaque than those of P. alba. No itching, or scarcely any, attends this eruption, but when irritated (for example, by sit- ting before a fire, by facing a cold wind, or by using strong soap to the face and neck) the patches are apt to occasion a pretty severe sensation of burning and smarting.