On neurotic cutaneous diseases, including erythema / by Henry Samuel Purdon.

Date:
1869
Catalogue details

Licence: Public Domain Mark

Credit: On neurotic cutaneous diseases, including erythema / by Henry Samuel Purdon. 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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    various causes, but chiefly from nervous, there ensues a train of symptoms which may be described as follows:—Congestion, increased temperature in the affected part, escape of fluid from the vessels, givuig rise to various elementary lesions as vesicles; or, when the exudation is plastic, papules. Burns form good ilkistrations of the manner in which these various symptoms occur from irritation of the skin. A shght scald produces a simple erythema; but, if the cause has been more severe, a large accumulation of fluid, consti- tuting a bleb, is exhibited. The following observations, which are abbreviated from the Lancet of October 10th, 1868, are very interesting:—As generally understood, a blister is supposed to be an exudation of fluid, which, discharged from dilated vessels, passes through the rete mucosum, or Malpighan layer of the skin, and accumulates between the epidermis that constitutes the elevation and the rete mucosum which is held to remain attached to the surface of the dermis. Some recent observations of Professor Bie- siadecki show that our previous knowledge of the process, though in the main correct,