. An analytical compendium of the various branches of medical science, for the use and examination of students. Anatomy; Physiology; Surgery; Obstetrics; Medicine; Materia Medica. 104 SURGERY. VARICOSE This is usually the result of a wound, and occurs most frequently in the elbow after bleeding. An opening remains both in the artery and the vein, and a cyst is formed with this double communication. The arterial blood en- '^'_ ? ters the vein, and pro- duces greater or less distension of it. This enlargement of the vein is recognised by a peculiar thrill, resem- bling the purr of a c
. An analytical compendium of the various branches of medical science, for the use and examination of students. Anatomy; Physiology; Surgery; Obstetrics; Medicine; Materia Medica. 104 SURGERY. VARICOSE This is usually the result of a wound, and occurs most frequently in the elbow after bleeding. An opening remains both in the artery and the vein, and a cyst is formed with this double communication. The arterial blood en- '^'_ ? ters the vein, and pro- duces greater or less distension of it. This enlargement of the vein is recognised by a peculiar thrill, resem- bling the purr of a cat: it may exist for some time without any inconvenience, and is to be removed by tying the artery above and below the sac, and oftentimes it is necessary to tie the vein. Aneurismal varix is another variety, occurring under the same circumstances, at the bend of the arm. The vein and artery com- municate, as in the former, but without any cyst interposed; the swelling is less, but more diffused, and varicose distension of the veins is very great. The Fig. 36. limb below the tumour is imperfectly supplied with arterial blood, and, con- sequently, cold, numb and vitally weak, and also liable to congestion ~~ ' and oedema. It is to be treated by pressure, so as to repress the swelling, and moderate the sanguineous mixture: this will palliate the symptoms, and permit the use of the limb. A permanent cure can only be effected by tying the artery above and below the aperture of communication. Aneurism by anastomosis presents itself in various forms: 1. Capillaries of a portion of integument may be equally and perma- nently dilated, producing discoloration and slight elevation of the part. This is one form of naevus, or congenital mark, which is attended with no danger, and may be considered as a deformity rather than as a disease. 2d. The structure may consist chiefly of dilated veins fed by arterial branches. This structure is not found in the true skin, but in the adjacent cellula
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