Atlas of delineations of cutaneous eruptions; illustrative of the descriptions in the Practical synopsis of cutaneous diseases of Thomas Bateman / By Anthony Todd Thomson.

  • Anthony Todd Thomson
Date:
1829
Catalogue details

Licence: Public Domain Mark

Credit: Atlas of delineations of cutaneous eruptions; illustrative of the descriptions in the Practical synopsis of cutaneous diseases of Thomas Bateman / By Anthony Todd Thomson. Source: Wellcome Collection.

    19/187 (page 3)
    LICHEN. Species 1. LicwEen simpler, StmpLe LIcHEN, is characterised by groups of distinct red papule, slightly inflamed round their base. ‘This eruption appears first on the face or on the arms, and, in the course of a few days, extends to the trunk and lower limbs. It terminates in a slight scurf, or exfoliation of the papule, as represented in the plate. It may be mistaken for Scabies; but its position on the face, and its purely papular character, are sufficient to distinguish it from that disease. Species 2. L. pilaris, Harr Licuen, is a modi- fication of the simplex, the papulee appearing only at the roots of the hairs of the skin. Species 3. L. circumscriptus, CLUSTERED LICHEN, is less common than the two former species. ‘The papulze are closely grouped; and, each being sur- rounded with an inflamed base, the groups assume the form of irregular, somewhat circular patches, having a well-defined margin. ‘The clusters extend at this margin, which remains papulated, whilst the surface of the centre of the patches becomes even, but continues red and rough. Sometimes fresh crops of patches arise, and run through the same course ; and in this manner the disease is prolonged for several weeks. : SpecIES 4. L. agrius, Witp LicHEN, is ushered in by febrile symptoms. It appears first in distinct B.2