Selected monographs on dermatology / Unna, Nielsen, Duhring, Bronson, Blanc, Berger, Prince-Morrow.

  • New Sydenham Society.
Date:
1893
Catalogue details

Licence: Public Domain Mark

Credit: Selected monographs on dermatology / Unna, Nielsen, Duhring, Bronson, Blanc, Berger, Prince-Morrow. Source: Wellcome Collection.

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

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    (6) The nervous haemorrhages of French observers. Strauss found petechias in tabetics, over painful spots, and Faisans observed them in neuralgia. Many haemorrhages in cancer and tubercle of the spine may, perhaps, be here included, as well as the angio-neuroses, urticaria, and erythema multi- forme. It is conceivable that a venous spasm may be present, and that if the congestion be enduring, exudation of red disks will result. Accurate clinical and histological observations are here needed. It is time to discard the notion of cachectic purpura as well as that of blood-dissolution. When occurriDg in cachectic, ill-nourished, alcoholic, or old patients, these haemorrhages probably belong to one of the first three groups; but the debilitated action of the heart, and the lowered blood- pressure in the capillaries in such cases, are no doubt favour- able to the formation of thrombi by bacilli, &c. VII. Angio-neuroses. To Auspitz we must give the credit of having first sepa- rated a series of skin affections, under the name of 11 Angio- neurotic Dermatitides/' from the ordinary inflammatory processes, and for having clearly defined this class. The author gives a quotation from Auspitz's work, in which the necessity is pointed out of forming a distinct class of Angio-neurotic skin affections. Auspitz considers that the changes in the tone of the blood vessels are independent of local inflammatory processes, but are dependent upon injuries which act upon the vascular nerve-centres ; therefore, according to him, the localisation in the skin in each particular case arises from two sources—the nerve disturbance and the local injury to the skin; but he has no very clear ideas as to how the alteration of the vessel-tonus is combined with the local inflammation. It is necessary that we should clearly understand the mode of action of the neurosis in every case of inflammation, more especially as the vast differences in the exanthemata are determined by different combinations of 1 Portesimgen iiber allgemeine Patbologie der Haut, ' Monatsh. f. prakt. Derm.,' xi Bd., Nos. 10—12.