The treatment of obstinate ulcers and cutaneous eruptions on the leg without confinement / by Henry T. Chapman.

  • Chapman, Henry T. (Henry Thomas), 1806-1874.
Date:
1859
Catalogue details

Licence: Public Domain Mark

Credit: The treatment of obstinate ulcers and cutaneous eruptions on the leg without confinement / by Henry T. Chapman. Source: Wellcome Collection.

Provider: This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.

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    butecl to the locality^ and regarded as one of the accidents of their position. Sir Charles Bell, in his Institutes of Surgery,* noticing the welt around the ulcer as a pecu- liarity of the complaint, ridicules an idea pro- pounded by some author, that it is a circumvalla- tion thrown up for the defence of the sore. It is not very clear what is meant by this figure of speech; but, interposed as it is between the sub- jacent vessels and the new capillaries forming on the surface of the sore, this circumvallation does appear to act as a barrier to check a too free egress of blood from the former, and secure the yet fragile walls of the latter from plethora or rupture; and may thus be looked upon as a special provision of nature, to guard against the mischief to which the vessels, engaged in an attempt to repair a breach of surface in a depending part, would otherwise be constantly exposed. In ulcers prone to haemorrhage, I have almost invariably noticed that this deposit is absent; and, when its absorption has been effected by art, nearly all sores bleed as soon as the bandage is taken off, if the foot be allowed to hang down. Be this as it may, the longer the case is neg- lected, the more restricted does the communication between the subjacent vessels and the capillaries of * Vol. i. p. 87.