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.

    29/678 page 35
    A general eruption is either one of the exanthematous fevers, dermatitis exfoliativa, eczema, erytliema, ichthy- osis, lichen planus, lichen ruber acuminatus, j)ityriasis rubra pilaris, psoriasis, scabies, or syphilis. Of these, syphilis is most marked on the sides of the chest and abdomen, and upon the face along the margin of the hair. It may also be given as a general rule, to which there are many exceptions, that syphilis occu- pies the flexor surfaces of the extremities and the ante- rior plane of the trunk, while psoriasis is found most markedly upon the extensor surfaces of the extremities and the posterior plane of the trunk. Configuration. Certain diseases assume certain con- figurations, which, if noted, will sometimes assist in diagnosis. Thus we have The circular outline and scalloped border of syphilis. The round and bald patch of trichophytosis and alopecia areata. The map-like border of psoriasis. The oval or egg-shaped lesions of erythema nodosum and the gumma of syphilis. The angular umbilicated papules of lichen planus. The annular arrangement in herpes iris and pityriasis rosea, and in some cases of ringworm, psoriasis, syphilis, and seborrhoea corporis. The patches of grouped vesicles upon reddened bases located over the course of a cutaneous nerve in zoster. The Differential Diagnosis of Ringed Erup- tions.' The eruptions that appear, either habitually or occasionally, in ring shape are trichophytosis corporis, syph- ilis, psoriasis, erythema multiforme, seborrhoea sicca, pity- riasis maculata et circinata, and, rarely, favus of the l)ody in its so-called herpetic stage. These eruptions often bear so strong a resemblance to one another that it is hard for even experts to make a positive diagnosis. It is, therefore, small wonder that the. physician who has not had much experience in skin diseases should sometimes make an error in diagnosis. Ha])pily, each one of them does have certain so well-defined features that a sure diagnosis can be made * American Medico-Surgical Bulletin.
    digitised image 1
    digitised image 2
    digitised image 3